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OpenAI Pauses Frontier RL Training as It Tightens Defenses Against Unsafe AI Behavior

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 internally also grow,” the AI company

US warns of AI-powered attacks on Siemens PLCs in critical infrastructure

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. […]

US charges Iranian hackers over $3.4 billion intellectual property theft

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. […]

Password spraying attacks surge 155x as hackers exploit MFA gaps

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. […]

Virtual Event Today: CodeSecCon – Secure Your Code and Applications

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.

SilkParasite Espionage Campaign Targets Central Asian Governments with Five New RATs

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 late 2025, is assessed to be a

Prevalent AI Raises $22 Million to Expand Data Fabric Platform

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.

Hackers Compromised 14,500+ Dahua Devices Using Credential Attacks, Auth Bypasses, and P2P

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 working directory containing 2,616 files

US Charges 17 Iranian Hackers, Offers $10 Million Rewards for 5 of Them

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.

Phishing 3.0: The Fight Moves to Agent Versus Agent

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 AI on Both Sides

Phishing 1.0 was bad

Author: brangberg