Telnet should have been retired years ago, but in 2026 it’s still causing serious breaches. A critical vulnerability CVE-2026-24061 in the GNU telnet server (telnetd) was discovered in January 2026. The bug has existed since 2015 and lets attackers log…continue reading

When the Iberian Peninsula went dark on 28 April 2025, my first thought was cyber-attack, everything pointed that way. I was at a client site where, thanks to my recommendations, their 5 kVA UPS fired immediately, bridging the gap until their…continue reading

This year TAP Air Portugal joined a growing list of organizations affected by cyberattacks. Around 6.1 million customer records surfaced online after a ransomware incident linked to the Ragnar Locker group, later documented by Have I Been Pwned. The exposed…continue reading

A sophisticated, long-running cyberattack targeted Portuguese military networks, resulting in the exfiltration of classified NATO documents. The intrusion primarily affected systems in the Estado-Maior-General das Forças Armadas (EMGFA), Centro de Informações de Segurança Militares (CISMIL), and the Direção-Geral de Recursos…continue reading

A website using HTTP is an unprotected one and can potentially reveal information about the users that access it. As a user, here is an example: you are using the search function in an unprotected website, so you can disclose…continue reading

In December 2007, Portugal is witnessing a significant rise in cyber attacks and computer-related crime, with particular emphasis on the emergence of data-seizing malware (ransomware) affecting companies and essential services, including signs of vulnerability in critical institutions such as Multibanco,…continue reading