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Researchers Reveal Reprompt Attack Allowing Single-Click Data Exfiltration From Microsoft Copilot

Cybersecurity researchers have disclosed details of a new attack method dubbed Reprompt that could allow bad actors to exfiltrate sensitive data from artificial intelligence (AI) chatbots like Microsoft Copilot in a single click, while bypassing enterprise security controls entirely.
“Only a single click on a legitimate Microsoft link is required to compromise victims,” Varonis security

How to automate just-in-time access to applications with Tines

Managing just-in-time access at scale is a growing IAM challenge as speed and auditability collide daily. Tines shows how automated workflows can grant, track, and revoke temporary app access without manual effort. […]

ThreatsDay Bulletin: AI Voice Cloning Exploit, Wi-Fi Kill Switch, PLC Vulns, and 14 More Stories

The internet never stays quiet. Every week, new hacks, scams, and security problems show up somewhere.
This week’s stories show how fast attackers change their tricks, how small mistakes turn into big risks, and how the same old tools keep finding new ways to break in.
Read on to catch up before the next wave hits.

Unauthenticated RCE risk

Security Flaw in Redis

Depthfirst Raises $40 Million for Vulnerability Management

The startup will use the investment to accelerate R&D, expand go-to-market efforts, and hire new talent.

The post Depthfirst Raises $40 Million for Vulnerability Management appeared first on SecurityWeek.

isVerified Emerges From Stealth With Voice Deepfake Detection Apps

isVerified provides Android and iOS mobile applications designed to protect enterprise communications.

The post isVerified Emerges From Stealth With Voice Deepfake Detection Apps appeared first on SecurityWeek.

New ‘Reprompt’ Attack Silently Siphons Microsoft Copilot Data

The attack bypassed Copilot’s data leak protections and allowed for session exfiltration even after the Copilot chat was closed.

The post New ‘Reprompt’ Attack Silently Siphons Microsoft Copilot Data appeared first on SecurityWeek.

Model Security Is the Wrong Frame – The Real Risk Is Workflow Security

As AI copilots and assistants become embedded in daily work, security teams are still focused on protecting the models themselves. But recent incidents suggest the bigger risk lies elsewhere: in the workflows that surround those models.
Two Chrome extensions posing as AI helpers were recently caught stealing ChatGPT and DeepSeek chat data from over 900,000 users. Separately, researchers

4 Outdated Habits Destroying Your SOC’s MTTR in 2026

It’s 2026, yet many SOCs are still operating the way they did years ago, using tools and processes designed for a very different threat landscape. Given the growth in volumes and complexity of cyber threats, outdated practices no longer fully support analysts’ needs, staggering investigations and incident response.
Below are four limiting habits that may be preventing your SOC from evolving at

Central Maine Healthcare Data Breach Impacts 145,000 Individuals

Hackers stole patients’ personal, treatment, and health insurance information from the hospital’s IT systems.

The post Central Maine Healthcare Data Breach Impacts 145,000 Individuals appeared first on SecurityWeek.

FTC bans GM from selling drivers’ location data for five years

The FTC has finalized an order with General Motors, settling charges that it collected and sold the location and driving data of millions of drivers without consent. […]

Author: brangberg