Zvyčajne dostávam otázky, prečo mám nálepku na snímačoch okolitého svetla na mojich notebookoch a telefóne. Niektorí si myslia, že neviem rozlíšiť svetelný senzor od kamery a snažia sa mi vysvetliť, že to nie je kamera. What they don’t know is that ambient light sensors can be…
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Vďaka dlhej ročnej dovolenke spoločnosti Mastercard (máme 25 dní!) I took a two week trip to Egypt earlier this month to visit a place I have always wanted to see: the burial tombs of the ancient pharaohs in the Valley of the Kings. As a security engineer, I could not help looking at these…
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Tento príspevok je reakciou na priateľa, ktorý hľadá pozíciu v oblasti kybernetickej bezpečnosti na mimoriadne náročnom trhu. Keďže ide o rozšírený problém v súčasnosti, Rozhodol som sa napísať príspevok namiesto toho, aby som len zanechal komentár. Various statistics from multiple sources suggest that there is a wide gap in cybersecurity roles,…
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Moje prvé stretnutie so svetom kybernetických zločincov sa odohralo prostredníctvom kampane typu watering hole pred mnohými rokmi. I visited a Persian website and discovered that it was downloading malware onto visitors’ browsers. I promptly contacted the site administrator, who informed me that they had no technical knowledge of the issue. It became apparent that…
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I have heard this many times over the course of the last several years: someone is experiencing a heavy DDoS attack on their website. When I ask them what type of attack they are experiencing, the answer is usually that the bad guys are sending them thousands or even millions of POST requests. When I…
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DDoS (distribuovaný odmietavý útok služby) a DoS (odmietavý útok služby) útoky možno všeobecne rozdeliť do troch kategórií na základe vrstiev OSI modelu, na ktoré ciele: sieťová vrstva (Vrstva 3), transportná vrstva (Vrstva 4), a aplikačná vrstva (Vrstva 7). Vrstva 3 a Vrstva 4 útoky sú zvyčajne menej zložité–aj keď môžu byť…
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The web application firewall (WAF) is a security tool used to guard against unwanted access to web applications. It is often a security device that sits on top of a web server and guards against threats from the internet or from beyond the network perimeter. Unlike Layer 3 (Network) a Vrstva 4 (Transport) firewalls, which…
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Canvas fingerprinting, and Zombie cookie trackers are nothing new; however, these methods are improved and have become notoriously effective over the time. Recently, a study revealed that one in every four 10,000 most visited websites on the internet uses canvas fingerprinting to track the visitors with up to 99.9% accuracy. The tracking attempt to collect…
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For many years, I zealously have used Suhosin with any implementations of PHP5 on Apache2 or PHP-FPM Nginx webservers to defend against SQL injection and other common web attacks. In fact, PHP5 was so disastrous, both in terms of its core security, and its functions and modules that I could have never conceived using it…
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