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Cybersecurity

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Cybersecurity

Researchers just pulled off a silent prompt-injection attack on GPT-4o and Claude-class agents tied to email and calendar tools — exfiltrating data without the agent’s user ever noticing

By Cassian Holt

Cybersecurity

Hackers behind Operation TrueChaos just pushed malicious updates through a trusted on-prem TrueConf server — slipping the payload into multiple government agencies in a Southeast Asian country

By Cassian Holt

Cybersecurity

CISA just added two Microsoft Defender flaws to the actively exploited list — every federal agency ordered to patch CVE-2026-41091 and CVE-2026-45498 by Wednesday

By Cassian Holt

Cybersecurity

Never text “STOP” back to a spam message — security researchers say the reply just confirms your number is live and routes you to a worse list

By Cassian Holt

Cybersecurity

The NSA still warns every smartphone user to disable one default setting that most Americans leave switched on

By Cassian Holt

Cybersecurity

An autonomous bot running on Claude Opus just chained zero-days through GitHub Actions in the wild — poisoning Go init functions and branch names to seize remote code execution

By Cassian Holt

Cybersecurity

Microsoft just confirmed attackers are exploiting an Exchange Server zero-day to silently hijack inboxes — CVE-2026-42897 lets them rewrite emails and steal session tokens

By Cassian Holt

Cybersecurity

Sysdig just documented the first AI agent that ran a full cyber intrusion start to finish — four pivots and a database drained in under an hour with no human at the keyboard

By Cassian Holt

Cybersecurity

Never text “STOP” back to a spam message — security researchers say the reply just confirms your number is live

By Cassian Holt

Cybersecurity

Attackers are exploiting the SEPPmail Secure E-mail Gateway right now — reading corporate inboxes and running code on the servers that route every message

By Cassian Holt

Cybersecurity

Palo Alto Networks just confirmed attackers are bypassing authentication on its PAN-OS and Prisma Access firewalls — limited exploitation already detected in the wild

By Cassian Holt

Cybersecurity

CISA just ordered every federal agency to lock down the May 29 Exchange flaw — the patch deadline passed last week with the bug still being weaponized in single emails

By Cassian Holt

Cybersecurity

A data-breach wave hit five firms on the same day — Grupo Premier, GS Yuasa Lithium Power, Advanced Psychiatry Associates, Alpine Aerotech, and American Battery Factory

By Cassian Holt

Cybersecurity

The NSA still warns every smartphone user to disable one default setting most Americans leave on

By Cassian Holt

Cybersecurity

The Coinbase Cartel ransomware crew just hit Siveco, Openmind Networks, and Pragmatic Solutions in a single day — no encryption, just stolen data and threats to dump it

By Cassian Holt

Cybersecurity

Anthropic’s Mythos model just flagged a pile of critical vulnerabilities in legacy systems — surfacing holes human auditors have walked past for years

By Cassian Holt

Cybersecurity

Cybersecurity researchers just found that ChatGPT implicitly trusts the Markdown links around it — and hackers are already exploiting that trust for phishing

By Cassian Holt

Cybersecurity

The FBI just warned every iPhone and Android user to audit foreign-developed apps — Chinese security laws could pull your contacts, location, and messages onto foreign servers

By Cassian Holt

Cybersecurity

Android is now adding post-quantum cryptography by default — locking down your texts against computers that don’t exist yet

By Cassian Holt

Cybersecurity

Hackers are now wielding AI to knock companies offline in seconds — and the DDoS-for-hire tools powering the attacks are all for sale on the dark web

By Cassian Holt

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