{"id":26370,"date":"2022-04-19T15:17:00","date_gmt":"2022-04-19T13:17:00","guid":{"rendered":"https:\/\/perseus.de\/evil-twin\/"},"modified":"2026-03-27T18:16:37","modified_gmt":"2026-03-27T17:16:37","slug":"evil-twin","status":"publish","type":"post","link":"https:\/\/perseus.de\/en\/evil-twin\/","title":{"rendered":"Evil Twin"},"content":{"rendered":"\t\t
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Evil Twin\n<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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An \u201cevil twin\u201d is a fake Wi-Fi network that looks just like a trustworthy, genuine network \u2013 for example, the guest Wi-Fi at a company, a caf\u00e9 or a hotel. The attackers\u2019 aim is to trick users into connecting to the fake network so that they can then steal their data. <\/p>

<\/h3>

What happens during an attack?<\/h3>

The attacker sets up a Wi-Fi network with the same name (SSID) as a genuine network. If a device connects to it \u2013 often automatically if it recognises the genuine network \u2013 the attacker can, for example:<\/p>

  • Intercept data traffic (e.g. passwords or emails)<\/p><\/li>

  • distribute malware<\/p><\/li>

  • Intercepting logins (e.g. to cloud services, corporate systems)<\/p><\/li><\/ul>

    <\/h3>

    Where do I come across this in my day-to-day work at an SME?<\/h3>

    Here\u2019s an example: employees log into a Wi-Fi network named \u2018CompanyName_Guest\u2019 whilst out and about in a caf\u00e9 or at a trade fair \u2013 but in reality, it is a fake network set up by an attacker. This is particularly critical if they access internal systems or send emails containing confidential data. <\/p>

    <\/h3>

    How can you protect yourself?<\/h3>

    • Never allow automatic connection to known Wi-Fi networks<\/strong><\/p><\/li>

    • Use VPN connections<\/strong>, especially when out and about<\/p><\/li>

    • Check Wi-Fi names<\/strong> \u2013 if in doubt, use mobile data instead<\/p><\/li>

    • Run awareness-raising<\/strong> training sessions<\/p><\/li>

    • Do not use sensitive services over public Wi-Fi networks<\/strong><\/p><\/li><\/ul>

      <\/p>

      The \u2018evil twin\u2019 is an attack that is easy to carry out but highly effective \u2013 which is why raising awareness within the organisation is particularly important.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/header>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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      Evil Twin An \u201cevil twin\u201d is a fake Wi-Fi network that looks just like a trustworthy, genuine network \u2013 for example, the guest Wi-Fi at a company, a caf\u00e9 or a hotel. The attackers\u2019 aim is to trick users into connecting to the fake network so that they can then steal their data. What happens […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[57],"tags":[],"class_list":["post-26370","post","type-post","status-publish","format-standard","hentry","category-cyber-glossary"],"acf":[],"yoast_head":"\nEvil Twin - Perseus Technologies<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/perseus.de\/en\/evil-twin\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Evil Twin - Perseus Technologies\" \/>\n<meta property=\"og:description\" content=\"Evil Twin An \u201cevil twin\u201d is a fake Wi-Fi network that looks just like a trustworthy, genuine network \u2013 for example, the guest Wi-Fi at a company, a caf\u00e9 or a hotel. 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