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Delta Air Lines is investigating an unauthorized Wi-Fi network that appeared aboard a flight from Las Vegas to Atlanta carrying passengers who had attended the DEF CON hacker convention. ​The company told BleepingComputer that the incident occurred yesterday on Flight 591 and did not affect the safety of the passengers or aircraft operating systems. “We […]

Cisco is warning that a high-severity denial-of-service vulnerability in Secure Firewall ASA and Threat Defense (FTD) software is being actively exploited in attacks to remotely crash affected devices. The flaw, tracked as CVE-2026-20349, has a severity score of 8.6 and impacts devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) or Secure Firewall Threat Defense

Hackers associated with the Russian threat group Sandworm have been targeting system administrators and IT professionals through fake job offers since at least May. A report from the Ukrainian Computer Emergency Response Team (CERT) details a social engineering campaign attributed to UAC-0145, which is believed to be a sub-cluster of Sandworm (APT44). In the campaign,

The DeadLock ransomware operation is using a decentralized infrastructure that relies on blockchain-backed services to protect its communication with victims and data-leak activity. The threat actor emerged in mid-2025 and uses double-extortion tactics (data theft/leak and file encryption) to pressure victims into paying a ransom. By July this year, DeadLock’s data leak site listed 80

Mozilla announced today that it updated the GPG key used to sign Firefox and Thunderbird releases after it was accidentally exposed on GitHub. However, in a Monday blog post, it noted that the risk of a supply chain attack in which threat actors could distribute malicious installers signed with the exposed key is low because