{"id":8502,"date":"2022-02-20T14:02:43","date_gmt":"2022-02-20T13:02:43","guid":{"rendered":"https:\/\/simplecryptoguide.com\/?p=8502"},"modified":"2026-10-26T14:37:40","modified_gmt":"2026-10-26T13:37:40","slug":"what-is-web-3","status":"publish","type":"post","link":"https:\/\/simplecryptoguide.com\/fi\/what-is-web-3\/","title":{"rendered":"Web3 selitettyn\u00e4: ymm\u00e4rr\u00e4, mit\u00e4 lompakko pyyt\u00e4\u00e4 hyv\u00e4ksym\u00e4\u00e4n"},"content":{"rendered":"<div data-no-translation><p>[et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;40px||40px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; background_color=&#8221;#fff8d8&#8243;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;2_3,1_3&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221; module_class=&#8221;scg-essential-hero&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;2_3&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221; header_font_size=&#8221;42px&#8221;]<\/p>\n<div class=\"scg-essential-breadcrumb\"><nav aria-label=\"breadcrumbs\" class=\"rank-math-breadcrumb\"><p><span class=\"last\">Home<\/span><\/p><\/nav><\/div>\n<h1>Web3 selitettyn\u00e4: ymm\u00e4rr\u00e4, mit\u00e4 lompakko pyyt\u00e4\u00e4 hyv\u00e4ksym\u00e4\u00e4n<\/h1>\n<p>Web3 tarkoittaa sovelluksia, joiden osa toiminnoista k\u00e4ytt\u00e4\u00e4 lohkoketjuja, lompakoita ja yhteisi\u00e4 protokollia. Esimerkkej\u00e4 ovat tokenien vaihto, ker\u00e4ilykohteiden omistus ja yhteis\u00f6n hallinto. Se ei ole erillinen internet, johon t\u00e4ytyy liitty\u00e4, eik\u00e4 Web3-nimi takaa hajautusta, yksityisyytt\u00e4 tai turvallisuutta. Olennaista on, mit\u00e4 hallitset itse ja mik\u00e4 riippuu edelleen yll\u00e4pit\u00e4j\u00e4st\u00e4.<\/p>\n<p class=\"scg-essential-task\">Teht\u00e4v\u00e4si: erota lompakon yhdist\u00e4minen, allekirjoitus ja tokenien k\u00e4ytt\u00f6valtuus toisistaan ennen kuin arvioit, vastaako pyynt\u00f6 aikomaasi toimintoa.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;1_3&#8243;][et_pb_image _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; src=&#8221;https:\/\/simplecryptoguide.com\/wp-content\/uploads\/2026\/10\/crypto-community-message-board.png&#8221; alt=&#8221;Puhekuplat ja toisiinsa yhdistetyt lohkoketjusolmut kuvaavat Web3-sovelluksia ja yhteis\u00f6j\u00e4&#8221; title_text=&#8221;Puhekuplat ja toisiinsa yhdistetyt lohkoketjusolmut kuvaavat Web3-sovelluksia ja yhteis\u00f6j\u00e4&#8221; align=&#8221;center&#8221; max_width=&#8221;260px&#8221; custom_margin=&#8221;0px|auto|0px|auto|true|true&#8221;][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;concept-map&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Web3-sovelluksen kolme kerrosta<\/h2>\n<div class=\"scg-essential-grid scg-essential-flow\">\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">1<\/span><\/p>\n<h3>Verkkosivu on k\u00e4ytt\u00f6liittym\u00e4<\/h3>\n<p>Selain n\u00e4ytt\u00e4\u00e4 tietoja ja ehdottaa toimintoja. Verkkotunnus, hosting, hakutulos ja tukikanavat voivat olla yrityksen hallinnassa tai hy\u00f6kk\u00e4\u00e4j\u00e4n kaappaamia. Tuttu ulkoasu ei todista, ett\u00e4 k\u00e4yt\u00e4t oikeaa sopimusta. Pelk\u00e4n katselun tai julkisen osoitteen tarkistamisen ei pit\u00e4isi edellytt\u00e4\u00e4 palautuslausetta.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">2<\/span><\/p>\n<h3>Lompakko hallitsee valtuutuksiasi<\/h3>\n<p>Lompakko hallitsee avaimia ja pyyt\u00e4\u00e4 hyv\u00e4ksynt\u00e4\u00e4 toiminnoille. Tavallinen yhdist\u00e4minen jakaa yleens\u00e4 valitut julkiset tilitiedot; se ei itsess\u00e4\u00e4n anna oikeutta k\u00e4ytt\u00e4\u00e4 tokeneita. Lue jokainen pyynt\u00f6, koska lompakot tukevat my\u00f6s laajempia oikeuksia. Julkiset osoitteet ja tapahtumahistoriat n\u00e4kyv\u00e4t julkisissa ketjuissa, vaikka et koskaan yhdist\u00e4isi verkkosivuun.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">3<\/span><\/p>\n<h3>Sopimukset toteuttavat s\u00e4\u00e4nn\u00f6t<\/h3>\n<p>\u00c4lysopimus suorittaa ohjelmoituja s\u00e4\u00e4nt\u00f6j\u00e4 lohkoketjussa. Tokenit voivat edustaa saldoja, \u00e4\u00e4nioikeutta tai p\u00e4\u00e4sy\u00e4, mutta jokainen hy\u00f6dyllinen sovellus ei tarvitse omaa tokenia. Selvit\u00e4, voiko yll\u00e4pit\u00e4j\u00e4 p\u00e4ivitt\u00e4\u00e4, keskeytt\u00e4\u00e4 tai muuttaa sopimusta. K\u00e4ytt\u00f6liittym\u00e4, tietol\u00e4hteet ja ulkoistetut solmupalvelut voivat pysy\u00e4 keskitettyin\u00e4, vaikka selvitys tapahtuu lohkoketjussa.<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;walkthrough&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Tarkista pyynt\u00f6 kolmessa vaiheessa<\/h2>\n<div class=\"scg-essential-grid\">\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">1<\/span><\/p>\n<h3>Varmista kohde ja verkko<\/h3>\n<p>Aloita projektin osoitteesta, jonka olet varmistanut riippumattomasti, \u00e4l\u00e4 pyyt\u00e4m\u00e4tt\u00f6m\u00e4st\u00e4 viestist\u00e4 tai sponsoroidusta hakutuloksesta. Tarkista lompakon n\u00e4ytt\u00e4m\u00e4 verkko, tili ja kohdesopimus. Pelkk\u00e4 tokenin tunnus ei yksil\u00f6i sopimusta. Lue ehdotettu toiminto ennen arvokkaita varoja sis\u00e4lt\u00e4v\u00e4n tilin yhdist\u00e4mist\u00e4.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">2<\/span><\/p>\n<h3>Selvit\u00e4, mit\u00e4 valtuutat<\/h3>\n<p>Viestin allekirjoitus voi kirjata sinut sis\u00e4\u00e4n, mutta muut allekirjoitukset voivat hyv\u00e4ksy\u00e4 toimeksiantoja tai tokenien k\u00e4ytt\u00f6\u00e4. Gas-maksun puuttuminen ei tarkoita riskitt\u00f6myytt\u00e4. Hyv\u00e4ksynt\u00e4 tai permit voi antaa tietylle toimijalle oikeuden tiettyyn tokeniin. Tapahtuma voi siirt\u00e4\u00e4 varoja tai muuttaa ketjun tilaa. Jos lompakko ei n\u00e4yt\u00e4 luettavaa toimintoa tai et pysty selitt\u00e4m\u00e4\u00e4n sit\u00e4, pys\u00e4hdy \u00e4l\u00e4k\u00e4 allekirjoita sokkona.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">3<\/span><\/p>\n<h3>Tarkista laajuus ja varmista tulos<\/h3>\n<p>Tuetussa tokenien k\u00e4ytt\u00f6valtuudessa tarkista token, k\u00e4ytt\u00f6oikeuden saaja ja m\u00e4\u00e4r\u00e4. Rajaa oikeus aiottuun teht\u00e4v\u00e4\u00e4n, kun se on k\u00e4yt\u00e4nn\u00f6ss\u00e4 mahdollista. Tarkista arvioitu gas erikseen. Varmista tapahtuman tila ja todelliset tokenimuutokset lompakosta tai lohkoketjuselaimesta. Sivuston irrottaminen katkaisee yhteyden, mutta ei automaattisesti peruuta voimassa olevaa tokenien k\u00e4ytt\u00f6valtuutta.<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;worked-example&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;30px|30px|30px|30px|true|true&#8221; module_class=&#8221;scg-essential-panel&#8221; background_color=&#8221;#fff8d8&#8243; custom_padding_phone=&#8221;22px|18px|22px|18px|true|true&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; border_radii=&#8221;on|16px|16px|16px|16px&#8221; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;#e5d89e&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Esimerkki: maksu ei ole sama kuin k\u00e4ytt\u00f6valtuuden raja<\/h2>\n<div class=\"scg-essential-equation\"><span>25 TOKEN<\/span><span>\u2260<\/span><strong>10,000 TOKEN<\/strong><\/div>\n<p>Aiot k\u00e4ytt\u00e4\u00e4 sovelluksessa 25 kuvitteellista TOKEN-yksikk\u00f6\u00e4. Lompakko pyyt\u00e4\u00e4 kuitenkin 10 000 TOKENin k\u00e4ytt\u00f6valtuutta sopimukselle. Se on oikeus k\u00e4ytt\u00e4\u00e4 enint\u00e4\u00e4n 400 kertaa aiottu m\u00e4\u00e4r\u00e4, ei kuitti 25 tokenin maksusta. Tavallinen k\u00e4ytt\u00f6valtuus koskee tietty\u00e4 tokenia, oikeuden saajaa ja verkkoa. Voimassa oleva valtuus voi altistaa my\u00f6s my\u00f6hemm\u00e4t talletukset. Varmista saaja ensin ja pienenn\u00e4 sitten raja 25:een, jos ty\u00f6nkulku tukee sit\u00e4, tai hylk\u00e4\u00e4 pyynt\u00f6. Pienempi raja v\u00e4hent\u00e4\u00e4 t\u00e4m\u00e4n valtuuden vaarantamaa m\u00e4\u00e4r\u00e4\u00e4, mutta ei todista sopimuksen luotettavuutta. Varsinainen osto tai talletus on erillinen toiminto, ellei sovellus nimenomaisesti yhdist\u00e4 vaiheita.<\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;common-mistakes&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Virheet, jotka aiheuttavat tarpeetonta riski\u00e4<\/h2>\n<div class=\"scg-essential-grid\">\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">1<\/span><\/p>\n<h3>Allekirjoituksen pit\u00e4minen harmittomana kirjautumisena<\/h3>\n<p>Lue verkkotunnus, tarkoitus, tokenien laajuus ja voimassaoloaika, jos ne n\u00e4ytet\u00e4\u00e4n. Joitakin ketjun ulkopuolisia allekirjoituksia voidaan my\u00f6hemmin k\u00e4ytt\u00e4\u00e4 ketjussa teht\u00e4vien toimien valtuuttamiseen. Maksuton allekirjoitus ei v\u00e4ltt\u00e4m\u00e4tt\u00e4 ole harmiton viesti. \u00c4l\u00e4 hyv\u00e4ksy pyynt\u00f6\u00e4 vain siksi, ett\u00e4 tukihenkil\u00f6ksi v\u00e4itt\u00e4ytyv\u00e4 tili sanoo sen olevan v\u00e4ltt\u00e4m\u00e4t\u00f6n varojen vapauttamiseksi.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">2<\/span><\/p>\n<h3>Omistuksen sekoittaminen taattuun saatavuuteen<\/h3>\n<p>Tokenin omistaminen ei takaa, ett\u00e4 sen verkkosivu, kuvatiedosto tai markkinapaikka pysyy saatavilla. Hallintotoken ei automaattisesti tuo todellista vaikutusvaltaa, jos \u00e4\u00e4net keskittyv\u00e4t tai yll\u00e4pit\u00e4j\u00e4 voi kumota p\u00e4\u00e4t\u00f6kset. Selvit\u00e4, mik\u00e4 tallennetaan ketjuun, mik\u00e4 riippuu ulkoisista palvelimista ja kuka voi muuttaa kumpaakin.<\/p>\n<\/div>\n<div class=\"scg-essential-card\"><span class=\"scg-essential-number\" aria-hidden=\"true\">3<\/span><\/p>\n<h3>Yhteyden katkaisun luuleminen peruutukseksi<\/h3>\n<p>Sivuston irrottaminen ja tokenien k\u00e4ytt\u00f6valtuuden peruuttaminen ovat eri toimintoja. Tarkista valtuudet luotettavasta lompakosta tai lohkoketjuselaimesta oikeassa verkossa. Ketjussa teht\u00e4v\u00e4 peruutus vaatii yleens\u00e4 gas-maksun ja muuttaa tulevaa oikeutta; se ei palauta jo siirrettyj\u00e4 varoja. \u00c4l\u00e4 k\u00e4yt\u00e4 satunnaista sinulle l\u00e4hetetty\u00e4 \u201dlompakon puhdistuslinkki\u00e4\u201d.<\/p>\n<\/div>\n<\/div>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;practice&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;30px|30px|30px|30px|true|true&#8221; module_class=&#8221;scg-essential-panel&#8221; background_color=&#8221;#fff8d8&#8243; custom_padding_phone=&#8221;22px|18px|22px|18px|true|true&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; border_radii=&#8221;on|16px|16px|16px|16px&#8221; border_width_all=&#8221;1px&#8221; border_color_all=&#8221;#e5d89e&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Kokeile: arvioi pyynt\u00f6<\/h2>\n<p>Haluat tallettaa 20 TOKENia. Sivusto pyyt\u00e4\u00e4 5 000 TOKENin k\u00e4ytt\u00f6valtuutta ja v\u00e4itt\u00e4\u00e4, ett\u00e4 yhteyden katkaisu my\u00f6hemmin poistaa oikeuden. Mik\u00e4 selityksess\u00e4 on v\u00e4\u00e4rin ja mit\u00e4 sinun pit\u00e4\u00e4 tarkistaa ennen jatkamista?<\/p>\n<details>\n<summary>N\u00e4yt\u00e4 selitys<\/summary>\n<p>K\u00e4ytt\u00f6valtuus on 250 kertaa suunniteltu talletus. Yhteyden katkaisu ei peruuta sit\u00e4. Varmista sivusto, verkko, tokenin sopimus ja oikeuden saaja. Tarkista pyydetty oikeus ja k\u00e4yt\u00e4 sopivaa pienemp\u00e4\u00e4 rajaa, jos mahdollista, tai hylk\u00e4\u00e4 pyynt\u00f6. Vahvista talletus erikseen ja tarkista j\u00e4ljelle j\u00e4\u00e4neet valtuudet sen j\u00e4lkeen. Onnistunut tapahtuma tai rajattu valtuus ei kumpikaan todista sovellusta turvalliseksi.<\/p>\n<\/details>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;next-steps&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>Harjoittele tarkistukset ennen sovelluksen k\u00e4ytt\u00f6\u00e4<\/h2>\n<div class=\"scg-essential-actions\"><a class=\"scg-essential-button\" href=\"https:\/\/simplecryptoguide.com\/fi\/kryptovaluutta-lompakot\/\">Ymm\u00e4rr\u00e4 kryptovaluuttalompakot<span aria-hidden=\"true\">\u2192<\/span><\/a><a class=\"scg-essential-button\" href=\"https:\/\/simplecryptoguide.com\/fi\/miten-pitaa-kryptovaluuttasi-turvassa\/\">Suojaa avaimet ja k\u00e4ytt\u00f6valtuudet<span aria-hidden=\"true\">\u2192<\/span><\/a><a class=\"scg-essential-button\" href=\"https:\/\/simplecryptoguide.com\/fi\/crypto-readiness-quiz\/\">Testaa kryptovaluuttavalmiutesi<span aria-hidden=\"true\">\u2192<\/span><\/a><a class=\"scg-essential-button\" href=\"https:\/\/simplecryptoguide.com\/fi\/luokka\/how-to-buy\/buy-defi\/\">Tutustu DeFi-osto-oppaisiin<span aria-hidden=\"true\">\u2192<\/span><\/a><\/div>\n<p class=\"scg-essential-sources\"><a href=\"https:\/\/accounts.binance.com\/en\/register?ref=RP2JHHRW\" rel=\"sponsored nofollow noopener\" target=\"_blank\">Binance (kumppanilinkki)<\/a><\/p>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;26px||26px||true|false&#8221; custom_padding_phone=&#8221;18px||18px||true|false&#8221; custom_padding_last_edited=&#8221;on|phone&#8221; module_id=&#8221;sources&#8221;][et_pb_row _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; column_structure=&#8221;4_4&#8243; width=&#8221;92%&#8221; max_width=&#8221;1120px&#8221; custom_padding=&#8221;0px||0px||false|false&#8221;][et_pb_column _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; type=&#8221;4_4&#8243;][et_pb_text _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; text_font=&#8221;Inter||||||||&#8221; text_font_size=&#8221;17px&#8221; text_text_color=&#8221;#354554&#8243; text_line_height=&#8221;1.7em&#8221; header_font=&#8221;Inter|700|||||||&#8221; header_text_color=&#8221;#10202b&#8221; header_2_font=&#8221;Inter|700|||||||&#8221; header_2_text_color=&#8221;#10202b&#8221; header_2_font_size=&#8221;30px&#8221; header_2_font_size_phone=&#8221;25px&#8221; header_2_font_size_last_edited=&#8221;on|phone&#8221; header_3_font=&#8221;Inter|700|||||||&#8221; header_3_text_color=&#8221;#10202b&#8221; custom_margin=&#8221;0px||0px||false|false&#8221;]<\/p>\n<h2>L\u00e4hteet ja lis\u00e4lukeminen<\/h2>\n<ul class=\"scg-essential-sources\">\n<li><a href=\"https:\/\/ethereum.org\/web3\/\" target=\"_blank\" rel=\"noopener\">Ethereum \u2014 introduction to Web3<\/a><\/li>\n<li><a href=\"https:\/\/support.metamask.io\/more-web3\/dapps\/manage-dapp-permissions\" target=\"_blank\" rel=\"noopener\">MetaMask \u2014 dapp permissions<\/a><\/li>\n<li><a href=\"https:\/\/support.metamask.io\/configure\/tokens\/how-to-customize-token-approvals-with-a-spending-cap\/\" target=\"_blank\" rel=\"noopener\">MetaMask \u2014 spending caps<\/a><\/li>\n<li><a href=\"https:\/\/support.metamask.io\/hc\/en-us\/articles\/4446106184731\" target=\"_blank\" rel=\"noopener\">MetaMask \u2014 revoking token approvals<\/a><\/li>\n<\/ul>\n<p>[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section _builder_version=&#8221;4.27.9&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; fb_built=&#8221;1&#8243; module_class=&#8221;scg-handbook scg-essential-lesson&#8221; custom_padding=&#8221;0px||0px||true|false&#8221; 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