Cybersecurity researchers have disclosed details of a remote Spectre attack against Cloudflare Workers that leaked a JSON Web Token (JWT) from a co-located Worker in the production environment at up to 12 bits per second, 360 times the rate of an earlier attack demonstrated in 2021. The end-to-end experiment used an attacker Worker and a victim Worker con...
In a large-scale campaign that researchers dubbed CameraSwarm, hackers compromised more than 14,500 Dahua IP cameras mostly in Ukraine and Russia. [...]
OpenAI on Tuesday revealed that it paused reinforcement learning (RL) training for its latest artificial intelligence (AI) models for two weeks while it shored up additional defenses and increased the scope of its monitoring to avert another Hugging Face-like incident. "As models become more capable, the risks associated with developing and testing them i...
U.S. cybersecurity agencies warn that threat actors are using AI-generated scripts to exploit Siemens S7 Series programmable logic controllers (PLCs) in U.S. critical infrastructure. [...]
Critical
A spear-phishing campaign by a China-nexus group linked to FamousSparrow provides insight into geopolitical, technical, and strategic global moves by the country's APTs.
The U.S. has charged 17 Iranians, alleged members of a hacking-for-hire company called Mabna Institute, involved in years-long operations that stole data from American organizations. [...]
Huntress observed a 155x increase in password spraying attacks in H1 2026, including a campaign that generated more than 81 million login attempts in two weeks. The attacks exploited legacy authentication and gaps in MFA policies that left some login flows unprotected. [...]
CodeSecCon is the premier virtual event bringing together developers and cybersecurity professionals to revolutionize the way applications are built, secured, and maintained. The post Virtual Event Today: CodeSecCon - Secure Your Code and Applications appeared first on SecurityWeek.
A previously unreported cyber espionage operation dubbed SilkParasite has been observed targeting government bodies in Central Asia. The intrusion set makes use of seven remote access tool (RAT) families, five of which have never been previously documented: DriveSilkRAT, CookiETagRAT, NomadRAT, GoginRAT, and NodeEdgeRAT. SilkParasite, first discovered in ...
The previously bootstrapped company helps organizations securely and reliably operate AI agents at scale. The post Prevalent AI Raises $22 Million to Expand Data Fabric Platform appeared first on SecurityWeek.
Cybersecurity researchers at Hunt.io have disclosed details of a campaign that they say compromised more than 14,530 Dahua devices between June 17 and July 22, 2026, using credential attacks, two authentication-bypass flaws, and a peer-to-peer (P2P) relay technique. The activity, codenamed Operation CameraSwarm, was reconstructed from a 407 MB exposed wor...
The 17 members of the Mabna Institute targeted hundreds of universities and organizations in the US and abroad. The post US Charges 17 Iranian Hackers, Offers $10 Million Rewards for 5 of Them appeared first on SecurityWeek.
Most email defenses still do the job they did a decade ago. Scan the message, look for something malicious, block it. That worked when the danger sat in the payload, a bad link or an attachment. It stopped working when the danger moved into the message's intent, and it is failing now that the sender is no longer a person. From Bad Content to Bad Intent to...
Cybersecurity researchers have flagged a global cybercrime operation that abuses thousands of hacked WordPress websites as infrastructure to disseminate malware, commandeer infected hosts, store stolen documents, screenshots, and activity logs created to track the status of the activity. "The operation doesn't rely on a single piece of malware, but on a w...
Malware
Microsoft has resolved a bug that caused Windows Defender to crash after a recent security update, resulting in 0xc0000005 access violation errors on some affected systems. [...]
The cybercrime gang has listed major companies such as Shell, Philips, Fiserv, Zebra, Mindray, and Largan Precision. The post Cl0p Ransomware Group Names Over 40 Victims of PTC Windchill Campaign appeared first on SecurityWeek.
Ransomware
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday added four critical vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, stating they are being exploited in the wild. The shortcomings added to the KEV catalog are listed below - CVE-2026-65400 (CVSS score: 9.8) - An improper authentication vulnerability impactin...
The flaws can be exploited for remote code execution, authentication bypass, and device takeover. The post CISA Urges Immediate Patching of Exploited Microsoft, VMware, Apple Vulnerabilities appeared first on SecurityWeek.