{"id":10069,"date":"2024-04-04T14:03:59","date_gmt":"2024-04-04T14:03:59","guid":{"rendered":"https:\/\/tech-lib.eu\/tech\/?p=10069"},"modified":"2024-04-04T14:03:59","modified_gmt":"2024-04-04T14:03:59","slug":"jak-funguji-nevyzadane-e-maily","status":"publish","type":"post","link":"https:\/\/tech-lib.eu\/tech\/jak-funguji-nevyzadane-e-maily\/","title":{"rendered":"Jak funguj\u00ed nevy\u017e\u00e1dan\u00e9 e-maily"},"content":{"rendered":"
\n
<\/div>\n

Nevy\u017e\u00e1dan\u00e9 e-maily jsou v modern\u00edm digit\u00e1ln\u00edm v\u011bku pro mnoho u\u017eivatel\u016f internetu neust\u00e1le nep\u0159\u00edjemn\u00e9. Na\u0161e schr\u00e1nky jsou zaplaveny t\u011bmito nevy\u017e\u00e1dan\u00fdmi a \u010dasto podvodn\u00fdmi e-maily, kter\u00e9 inzeruj\u00ed pochybn\u00e9 zbo\u017e\u00ed, vyl\u00e1k\u00e1vaj\u00ed osobn\u00ed \u00fadaje nebo \u0161\u00ed\u0159\u00ed \u0161kodliv\u00fd software. P\u0159em\u00fd\u0161leli jste n\u011bkdy o tom, jak tyto nevy\u017e\u00e1dan\u00e9 e-maily funguj\u00ed? V tomto p\u0159\u00edsp\u011bvku prozkoum\u00e1me vnit\u0159n\u00ed fungov\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f a poskytneme odpov\u011bdi na n\u011bkter\u00e9 souvisej\u00edc\u00ed ot\u00e1zky. Jak mohou spamme\u0159i odes\u00edlat zpr\u00e1vy pomoc\u00ed m\u00e9 e-mailov\u00e9 adresy? <\/p>\n

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Jednou z metod, kterou spamme\u0159i \u010dasto pou\u017e\u00edvaj\u00ed, je podvr\u017een\u00ed e-mailu. \u010casto pou\u017e\u00edvaj\u00ed e-mailov\u00e9 adresy, kter\u00e9 z\u00edskali r\u016fzn\u00fdmi zp\u016fsoby, nap\u0159\u00edklad \u00fanikem dat nebo sb\u011brem e-mailov\u00fdch adres z webov\u00fdch str\u00e1nek, k fal\u0161ov\u00e1n\u00ed pole „Od“ v e-mailu, aby zpr\u00e1va vypadala, \u017ee poch\u00e1z\u00ed z d\u016fv\u011bryhodn\u00e9ho zdroje. Ve snaze zv\u00fd\u0161it pravd\u011bpodobnost otev\u0159en\u00ed sv\u00fdch e-mail\u016f se spamme\u0159i vyd\u00e1vaj\u00ed za v\u00e1s nebo za n\u011bkoho, koho zn\u00e1te. Dost\u00e1v\u00e1te ob\u010das nevy\u017e\u00e1danou po\u0161tu? Jak ji vyu\u017eijete? <\/p>\n

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Je pravd\u011bpodobn\u00e9, \u017ee v\u00e1m n\u011bkdy do schr\u00e1nky p\u0159i\u0161ly nevy\u017e\u00e1dan\u00e9 e-maily. Tyto e-maily je snadn\u00e9 identifikovat, proto\u017ee jsou \u010dasto zas\u00edl\u00e1ny ve velk\u00e9m mno\u017estv\u00ed, obsahuj\u00ed irelevantn\u00ed obsah nebo maj\u00ed pochybn\u00e9 p\u0159edm\u011bty. Odkazy nebo p\u0159\u00edlohy v t\u011bchto e-mailech byste nem\u011bli otev\u00edrat, proto\u017ee by to mohlo v\u00e9st k naka\u017een\u00ed malwarem nebo ke snaze o kr\u00e1de\u017e va\u0161ich osobn\u00edch \u00fadaj\u016f. M\u00edsto toho tyto e-maily ozna\u010dte jako spam nebo nevy\u017e\u00e1danou po\u0161tu a odstra\u0148te je, abyste zabr\u00e1nili je\u0161t\u011b v\u011bt\u0161\u00edmu zahlcen\u00ed sv\u00e9 schr\u00e1nky. <\/p>\n

Pot\u0159ebujete \u010d\u00edst nevy\u017e\u00e1dan\u00e9 e-maily? <\/div>\n

Pokud neotev\u0159ete \u017e\u00e1dnou z p\u0159\u00edloh nevy\u017e\u00e1dan\u00fdch e-mail\u016f, nem\u00e1 to zpravidla \u017e\u00e1dn\u00e9 negativn\u00ed \u00fa\u010dinky. Je v\u0161ak nutn\u00e1 mimo\u0159\u00e1dn\u00e1 ostra\u017eitost. \u0160kodliv\u00fd k\u00f3d obsa\u017een\u00fd ve spamov\u00fdch e-mailech se ob\u010das po otev\u0159en\u00ed aktivuje a ohro\u017euje bezpe\u010dnost va\u0161eho za\u0159\u00edzen\u00ed. P\u0159ijet\u00edm nevy\u017e\u00e1dan\u00fdch e-mail\u016f nav\u00edc spamme\u0159i zjist\u00ed, \u017ee v\u00e1\u0161 e-mailov\u00fd \u00fa\u010det je aktivn\u00ed, co\u017e je m\u016f\u017ee p\u0159im\u011bt k zas\u00edl\u00e1n\u00ed dal\u0161\u00edho spamu. Proto se doporu\u010duje tyto e-maily ani nepokou\u0161et otev\u00edrat, zejm\u00e9na pokud se zdaj\u00ed b\u00fdt pochybn\u00e9. <\/p>\n

Jsou nevy\u017e\u00e1dan\u00e9 e-maily maz\u00e1ny? <\/div>\n

Slo\u017eka spam nebo ko\u0161 je speci\u00e1ln\u00ed m\u00edsto, kam jsou nevy\u017e\u00e1dan\u00e9 e-maily automaticky detekov\u00e1ny a p\u0159esouv\u00e1ny spamov\u00fdmi filtry pou\u017e\u00edvan\u00fdmi poskytovateli e-mailov\u00fdch slu\u017eeb. To v\u0161ak neznamen\u00e1, \u017ee tyto e-maily zcela zmiz\u00ed. V\u011bt\u0161ina poskytovatel\u016f e-mailov\u00fdch slu\u017eeb si nevy\u017e\u00e1dan\u00e9 e-maily n\u011bjakou dobu ponech\u00e1v\u00e1, ne\u017e je automaticky odstran\u00ed. U\u017eivatel\u00e9 tak mohou zkontrolovat slo\u017eku nevy\u017e\u00e1dan\u00e9 po\u0161ty a zjistit, zda n\u011bkter\u00e9 platn\u00e9 e-maily nebyly ne\u00famysln\u011b klasifikov\u00e1ny jako spam. Pravideln\u00e1 kontrola slo\u017eky nevy\u017e\u00e1dan\u00e9 po\u0161ty pom\u016f\u017ee zajistit, aby v n\u00ed omylem neskon\u010dily \u017e\u00e1dn\u00e9 d\u016fle\u017eit\u00e9 e-maily. <\/p>\n

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Z\u00e1v\u011brem lze \u0159\u00edci, \u017ee nevy\u017e\u00e1dan\u00e9 e-maily st\u00e1le obt\u011b\u017euj\u00ed u\u017eivatele v digit\u00e1ln\u00ed sf\u00e9\u0159e. Podvr\u017een\u00e9 e-maily jsou jednou z mnoha metod, kter\u00e9 spamme\u0159i pou\u017e\u00edvaj\u00ed k odes\u00edl\u00e1n\u00ed e-mail\u016f z fale\u0161n\u00fdch adres a zvy\u0161uj\u00ed pravd\u011bpodobnost, \u017ee jejich zpr\u00e1vy budou otev\u0159eny. P\u0159i kontaktu s nevy\u017e\u00e1dan\u00fdmi e-maily je nutn\u00e9 postupovat obez\u0159etn\u011b, nezab\u00fdvat se jejich obsahem a co nejd\u0159\u00edve je odstranit. Dopad t\u011bchto nev\u00edtan\u00fdch sd\u011blen\u00ed na n\u00e1\u0161 digit\u00e1ln\u00ed \u017eivot m\u016f\u017eeme sn\u00ed\u017eit t\u00edm, \u017ee pochop\u00edme, jak nevy\u017e\u00e1dan\u00e9 e-maily funguj\u00ed, a budeme pou\u017e\u00edvat bezpe\u010dn\u00e9 postupy.<\/p><\/div>\n

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FAQ<\/div>\n
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Pro\u010d mi do schr\u00e1nky chod\u00ed nevy\u017e\u00e1dan\u00e9 e-maily?<\/div>\n

Nevy\u017e\u00e1dan\u00e9 e-maily m\u016f\u017eete dost\u00e1vat do sv\u00e9 e-mailov\u00e9 schr\u00e1nky z n\u011bkolika d\u016fvod\u016f: Skl\u00edzen\u00ed e-mail\u016f je b\u011b\u017en\u00e1 taktika, kterou spamme\u0159i pou\u017e\u00edvaj\u00ed ke shroma\u017e\u010fov\u00e1n\u00ed e-mailov\u00fdch adres z webov\u00fdch str\u00e1nek, f\u00f3r a platforem soci\u00e1ln\u00edch m\u00e9di\u00ed. Va\u0161e e-mailov\u00e1 adresa mohla b\u00fdt shrom\u00e1\u017ed\u011bna spammery, pokud byla ve\u0159ejn\u011b p\u0159\u00edstupn\u00e1 nebo zve\u0159ejn\u011bn\u00e1 online. Va\u0161e e-mailov\u00e1 adresa mohla b\u00fdt za ur\u010dit\u00fdch okolnost\u00ed kompromitov\u00e1na v d\u016fsledku \u00faniku dat. Hacke\u0159i mohou z\u00edskat p\u0159\u00edstup k u\u017eivatelsk\u00fdm \u00fadaj\u016fm v\u010detn\u011b e-mailov\u00fdch adres a ukr\u00e1st je, pokud dojde k naru\u0161en\u00ed bezpe\u010dnosti podnik\u016f nebo webov\u00fdch str\u00e1nek. Spamme\u0159i pak mohou tyto ukraden\u00e9 informace koupit nebo pou\u017e\u00edt. Nezabezpe\u010den\u00e9 webov\u00e9 str\u00e1nky nebo slu\u017eby: Pokud jste se zaregistrovali na webov\u00e9 str\u00e1nce nebo u slu\u017eby, kter\u00e1 dostate\u010dn\u011b nezabezpe\u010duje va\u0161e osobn\u00ed \u00fadaje, m\u016f\u017ee b\u00fdt va\u0161e e-mailov\u00e1 adresa ohro\u017eena prodejem nebo p\u0159ed\u00e1n\u00edm spammer\u016fm. 4. Malware nebo viry: Spamme\u0159i mohou vyu\u017e\u00edvat po\u010d\u00edta\u010de infikovan\u00e9 viry k rozes\u00edl\u00e1n\u00ed velk\u00e9ho mno\u017estv\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f bez v\u011bdom\u00ed jejich majitele. Pokud je v\u00e1\u0161 po\u010d\u00edta\u010d vybaven malwarem, m\u016f\u017ee b\u00fdt pou\u017eit jako „bot“ k \u0161\u00ed\u0159en\u00ed spamu. 5. P\u0159ihl\u00e1\u0161en\u00ed k odb\u011bru, ani\u017e byste si to uv\u011bdomili: P\u0159i registraci k online slu\u017eb\u00e1m, zas\u00edl\u00e1n\u00ed novinek nebo prov\u00e1d\u011bn\u00ed transakc\u00ed se ob\u010das mohou vyskytnout p\u0159edem za\u0161krtnut\u00e1 pol\u00ed\u010dka, kter\u00e1 v\u00e1s automaticky p\u0159ihl\u00e1s\u00ed k odb\u011bru reklamn\u00edch e-mail\u016f. Pokud tyto polo\u017eky nezjist\u00edte nebo zru\u0161\u00edte jejich za\u0161krtnut\u00ed, m\u016f\u017eete za\u010d\u00edt dost\u00e1vat nevy\u017e\u00e1dan\u00e9 e-maily. <\/p>\n

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Je d\u016fle\u017eit\u00e9 si uv\u011bdomit, \u017ee odpov\u011bdi na nevy\u017e\u00e1dan\u00e9 e-maily nebo kliknut\u00ed na odkazy v nich mohou spammer\u016fm sd\u011blit, \u017ee va\u0161e e-mailov\u00e1 adresa je aktivn\u00ed, a povzbudit je k zas\u00edl\u00e1n\u00ed dal\u0161\u00edho spamu. Pou\u017e\u00edvejte bezpe\u010dn\u00e1 hesla, kter\u00e1 jsou siln\u00e1 a jedine\u010dn\u00e1, udr\u017eujte sv\u016fj software a antivirov\u00e9 aplikace v aktu\u00e1ln\u00edm stavu a d\u00e1vejte pozor na to, k \u010demu se p\u0159i zad\u00e1v\u00e1n\u00ed sv\u00e9 e-mailov\u00e9 adresy online p\u0159ihla\u0161ujete, abyste sn\u00ed\u017eili mno\u017estv\u00ed rozes\u00edlan\u00fdch nevy\u017e\u00e1dan\u00fdch e-mail\u016f. <\/p>\n<\/div>\n

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Je rozes\u00edl\u00e1n\u00ed nevy\u017e\u00e1dan\u00e9 po\u0161ty nez\u00e1konn\u00e9?<\/div>\n

Ano, zas\u00edl\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f je obecn\u011b zak\u00e1z\u00e1no. Zas\u00edl\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch komer\u010dn\u00edch e-mail\u016f bez souhlasu p\u0159\u00edjemce je zak\u00e1z\u00e1no v n\u011bkolika zem\u00edch v\u010detn\u011b USA. Tyto p\u0159edpisy byly zavedeny, aby chr\u00e1nily lidi p\u0159ed nevy\u017e\u00e1dan\u00fdmi a potenci\u00e1ln\u011b nebezpe\u010dn\u00fdmi zpr\u00e1vami. \u0158ada poskytovatel\u016f e-mailov\u00fdch slu\u017eeb m\u00e1 tak\u00e9 p\u0159\u00edsn\u00e9 antispamov\u00e9 z\u00e1sady a m\u016f\u017ee podniknout pr\u00e1vn\u00ed kroky proti odes\u00edlatel\u016fm, kte\u0159\u00ed poru\u0161uj\u00ed jejich podm\u00ednky slu\u017eby. <\/p>\n<\/div>\n

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Lze vysledovat nevy\u017e\u00e1danou po\u0161tu?<\/div>\n

Ano, nevy\u017e\u00e1dan\u00e9 e-maily lze vysledovat, ale m\u016f\u017ee to b\u00fdt obt\u00ed\u017en\u00e9. Anal\u00fdza hlavi\u010dky e-mailu a zdrojov\u00e9 IP adresy jsou dv\u011b b\u011b\u017en\u00e9 sou\u010d\u00e1sti procesu sledov\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f. Z\u00e1hlav\u00ed e-mailu obsahuje \u00fadaje o serverech, kter\u00fdmi e-mail pro\u0161el na cest\u011b od odes\u00edlatele k p\u0159\u00edjemci. Tyto \u00fadaje v z\u00e1hlav\u00ed m\u016f\u017eete vyhledat a zjistit, odkud spamov\u00fd e-mail p\u0159i\u0161el. <\/p>\n

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Vystopov\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f v\u0161ak m\u016f\u017ee b\u00fdt obt\u00ed\u017en\u00e9, proto\u017ee spamme\u0159i \u010dasto pou\u017e\u00edvaj\u00ed metody, kter\u00fdmi maskuj\u00ed svou pravou identitu. Aby skryli sv\u00e9 aktivity, mohou pos\u00edlat e-maily z hacknut\u00fdch po\u010d\u00edta\u010d\u016f nebo vyu\u017e\u00edvat anonymn\u00ed poskytovatele e-mailov\u00fdch slu\u017eeb. Aby profesion\u00e1ln\u00ed rozes\u00edlatel\u00e9 spamu je\u0161t\u011b v\u00edce utajili sv\u016fj p\u016fvod, mohou pou\u017e\u00edvat strategie, jako je podvr\u017een\u00ed IP adresy nebo odes\u00edl\u00e1n\u00ed e-mail\u016f p\u0159es n\u011bkolik server\u016f. <\/p>\n

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Poskytovatel\u00e9 internetov\u00fdch slu\u017eeb (ISP) a organizace \u010dinn\u00e9 v trestn\u00edm \u0159\u00edzen\u00ed maj\u00ed znalosti a prost\u0159edky, kter\u00e9 jim umo\u017e\u0148uj\u00ed spamov\u00e9 e-maily do ur\u010dit\u00e9 m\u00edry sledovat. Mohou spolupracovat p\u0159i prov\u011b\u0159ov\u00e1n\u00ed a zji\u0161\u0165ov\u00e1n\u00ed p\u016fvodu nevy\u017e\u00e1dan\u00fdch e-mail\u016f. Sledov\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f v\u0161ak m\u016f\u017ee zabrat mnoho \u010dasu a prost\u0159edk\u016f a nemus\u00ed nutn\u011b v\u00e9st k \u00fasp\u011b\u0161n\u00e9 identifikaci nebo usv\u011bd\u010den\u00ed p\u016fvodc\u016f spamu. <\/p>\n

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Lid\u00e9 by m\u011bli b\u00fdt opatrn\u00ed a p\u0159ijmout preventivn\u00ed opat\u0159en\u00ed, aby se nestali ob\u011b\u0165mi nevy\u017e\u00e1dan\u00fdch e-mail\u016f. Mezi tato opat\u0159en\u00ed pat\u0159\u00ed pou\u017e\u00edv\u00e1n\u00ed filtr\u016f spamu, neodpov\u00edd\u00e1n\u00ed na pochybn\u00e9 odkazy v e-mailech nebo neklik\u00e1n\u00ed na n\u011b a pravideln\u00e1 aktualizace bezpe\u010dnostn\u00edho softwaru.<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Nevy\u017e\u00e1dan\u00e9 e-maily jsou v modern\u00edm digit\u00e1ln\u00edm v\u011bku pro mnoho u\u017eivatel\u016f internetu neust\u00e1le nep\u0159\u00edjemn\u00e9. Na\u0161e schr\u00e1nky jsou zaplaveny t\u011bmito nevy\u017e\u00e1dan\u00fdmi a \u010dasto podvodn\u00fdmi e-maily, kter\u00e9 inzeruj\u00ed pochybn\u00e9 zbo\u017e\u00ed, vyl\u00e1k\u00e1vaj\u00ed osobn\u00ed \u00fadaje nebo \u0161\u00ed\u0159\u00ed \u0161kodliv\u00fd software. P\u0159em\u00fd\u0161leli jste n\u011bkdy o tom, jak tyto nevy\u017e\u00e1dan\u00e9 e-maily funguj\u00ed? V tomto p\u0159\u00edsp\u011bvku prozkoum\u00e1me vnit\u0159n\u00ed fungov\u00e1n\u00ed nevy\u017e\u00e1dan\u00fdch e-mail\u016f a poskytneme odpov\u011bdi … \u010c\u00edst d\u00e1l<\/a><\/p>\n","protected":false},"author":4146,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1169],"tags":[],"class_list":["post-10069","post","type-post","status-publish","format-standard","hentry","category-zabezpeceni-e-mailu"],"_links":{"self":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/10069","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/users\/4146"}],"replies":[{"embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/comments?post=10069"}],"version-history":[{"count":1,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/10069\/revisions"}],"predecessor-version":[{"id":15430,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/posts\/10069\/revisions\/15430"}],"wp:attachment":[{"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/media?parent=10069"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/categories?post=10069"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tech-lib.eu\/tech\/wp-json\/wp\/v2\/tags?post=10069"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}