TFTomáš Foltýn

1. Article · Sep 28, 2026 · Tomáš Foltýn

   The devil is still in the email – but wearing a new mask (opens the original)

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   Many of today’s phishing attempts are no longer betrayed by poor grammar, a sketchy URL or a crude login page. To be sure, it does still pay to look out for these red flags, but their absence doesn’t make a message legitimate. Modern social engineering schemes are increasingly designed to withstand scrutiny and to provide reassurance where an attack might once have left some giveaways. By extension, email-borne threats in particular are now built to meet as little resistance as possible. They su

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2. Article · Sep 10, 2026 · Tomáš Foltýn

   GuardBreaker: Derailing AI-assisted malware analysis with a code comment (opens the original)

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   Malware developers have long adapted their code and tactics to the defenses and scrutiny that are likely to stand in their way. Using various evasion and anti-analysis methods, they routinely attempt to hinder code analysis or prevent their malware from revealing its true behavior while under inspection. Other tools – notably, EDR killers, documented extensively by ESET researchers – go straight after security solutions themselves. As LLM-based tools increasingly assist with various security tas

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