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Intrusions

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OCT 27
latest
Ransomware

Hive, Nefilim Ransomware Affiliate Sentenced to 70 Months in Jail

A 36-year-old Ukrainian national who acted as a Nefilim and Hive ransomware affiliate and targeted hospitals and government entities has been sentenced to 70 months in prison.

LINDSEY O'DONNELL-WELCH · OCT 27 · 2 min
FortiBleed

FBI Warns of FortiBleed Attacks Leading to Lockouts, Ransomware

FortiBleed attacks are continuing, with the FBI and Secret Service warning of compromised Fortinet firewalls, account lockouts and potential ransomware activity.

Lindsey O'Donnell-Welch · 2 min
Malware

New Campaign Weaponizes Microsoft Teams for Remote Access

Unlike standard commodity malware that aims for quick credential theft, this campaign features a manual, hands-on-keyboard scheme designed to escalate rapidly from a single compromised workstation to broad, network-wide access.

Dennis Fisher · 2 min
AI

OpenAI, Anthropic AI Agents Performed ‘Unsanctioned’ Actions During Cyber Tests

OpenAI and Anthropic models made “unsanctioned” actions during tests by the AI Security Institute. Here’s what we know.

Lindsey O'Donnell-Welch · 5 min
Hugging Face

OpenAI-Hugging Face Breach: Five New Things We Learned

New details emerged this week about an intrusion by OpenAI models on Hugging Face’s infrastructure.

Lindsey O'Donnell-Welch · 4 min
OT security

The Joy and Pain of OT Cybersecurity: A Conversation With Lesley Carhart

Lesley Carhart has been cleaning up malware, intrusions, ransomware, and other messes in OT networks for the better part of two decades and recently joined Dennis Fisher on the Decipher podcast to talk about the special challenges OT networks present

Dennis Fisher · 4 min
China

Chinese APT UAT-7810 Expands Malware Arsenal

The investigation into UAT-7810 shows significant evolution in their toolkit, specifically the development of a successor to their previously documented SHORTLEASH backdoor.

Dennis Fisher · 2 min
Malware

Evil Is as Evil Does: New EvilTokens Affiliate Panel Uncovered

This new ARToken operator panel has a clear lineage going back to the EvilTokens framework, which emerged in early 2026.

Dennis Fisher · 2 min
Malware

New Turla Stockstay Backdoor Emerges

Known historically for its tight ties to Russia’s FSB and its development of the Snake implant, Turla has leveraged STOCKSTAY to target sensitive government and military organizations.

Dennis Fisher · 2 min
Fortinet

FortiBleed Credential Theft Campaign Marches On

The campaign is not the result of a compromise of Fortinet itself, but rather involves the attackers testing a custom list of known passwords for Fortinet devices.

Dennis Fisher · 2 min
Ransomware

Check Point VPN Flaw Targeted by Ransomware Actors

The vulnerability is a critical one and Check Point Research said that it’s likely that the actor targeting the bug is a financially motivated group.

Dennis Fisher · 2 min
Data Breach

GitHub Confirms Internal Breach

The company said it is still working through the intrusion but does not believe any customer repositories or data was affected at this point.

Dennis Fisher · 3 min
Government

Data Shows Thousands of Automatic Tank Gauges Exposed Across the US

As of May 2026, over 6,502 ATG services running on 6,057 unique hosts were found to be reachable on the public internet across more than 65 countries.

Dennis Fisher · 2 min
Intrusions

Ongoing Supply Chain Attack Expands to PyPi

Researchers have linked the compromise to the “Mini Shai-Hulud” campaign, which has been ongoing for several weeks and is associated with TeamPCP.

Dennis Fisher · 3 min
Government

Alleged Silk Typhoon Hacker Extradited to US

The hacker was allegedly involved in Hafnium campaigns that targeted Exchange server flaws and in attacks against COVID-19 research institutions.

Lindsey O'Donnell-Welch · 2 min
Cisco

Firestarter Malware Sparks Updated CISA Emergency Directive

CISA is warning of a persistent backdoor called Firestarter that’s being used in attacks against Cisco Firepower and Secure Firewall products.

Lindsey O'Donnell-Welch · 4 min
Cisco

Cisco CVE-2026-20133 Targeted in Active Attacks

The three newly added bugs are CVE-2026-20122, CVE-2026-20128, and CVE-2026-20133, the last of which had not been identified in active attacks before.

Dennis Fisher · 2 min
AI

Vercel Says Internal Systems Hit in Breach

The incident came to light on Sunday and the company says it has brought in an incident response provider to investigate the intrusion. Details of the intrusion are scant at this point.

Dennis Fisher · 3 min

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