“Reprompt” attack lets attackers steal data from Microsoft Copilot

Researchers found a method to steal data which bypasses Microsoft Copilot’s built-in safety mechanisms. The attack flow, called Reprompt, abuses how Microsoft Copilot handled URL parameters in order to hijack a user’s existing Copilot Personal session. Copilot is an AI Read More …

Microsoft disrupts global cybercrime subscription service responsible for millions in fraud losses

Today, Microsoft is announcing a coordinated legal action in the United States and, for the first time, the United Kingdom to disrupt RedVDS, a global cybercrime subscription service fueling millions in fraud losses. These efforts are part of a broader Read More …

CISA warns of active attacks on HPE OneView and legacy PowerPoint

The US Cybersecurity and Infrastructure Security Agency (CISA) added both a newly discovered flaw and a much older one to its catalog of Known Exploited Vulnerabilities (KEV). The KEV catalog gives Federal Civilian Executive Branch (FCEB) agencies a list of Read More …

Police arrest suspect over Microsoft 365 cyber attack

The Nigeria Police Force National Cybercrime Centre (NPF-NCCC) has apprehended a suspected cyber fraudster linked to coordinated attacks on Microsoft 365 email platforms used by corporate organisations. The arrest followed an intelligence-led investigation triggered by credible information from Microsoft Corporation Read More …

Microsoft says Azure was hit with a massive DDoS attack launched from over 500,000 IP addresses

Microsoft has said it successfully mitigated, “the largest DDoS attack ever observed in the cloud” after cybercriminals running the Aisuru botnet targeted a single endpoint, located in Australia. The attack was a sight to behold: more than 500,000 source IPs, Read More …

US Air Force admits SharePoint privacy issue as reports trickle out of possible breach

The US Air Force is reportedly investigating a potential data breach caused by a Microsoft SharePoint issue. A report from The Register revealed the Air Force Personnel Center Directorate of Technology and Information issued a data breach notification shared on Read More …

Microsoft SharePoint Zero-Day Exploitation: What Public Sector Leaders Should Know

The Rapid7 September 2025 Threat Report highlights active exploitation of a critical Microsoft SharePoint vulnerability, CVE-2025-53770. This zero-day is being used by threat actors to gain initial access to victim networks, with exploitation observed in government as well as multiple Read More …

Microsoft terminates services for Israeli military after investigation into mass surveillance of Palestinians

Microsoft has terminated a set of services for the Israeli military after an investigation suggested Israel was using the company’s cloud computing technology for mass surveillance of Palestinians. In a statement posted the company’s blog, Microsoft President Brad Smith said Read More …

Serious Microsoft Entra flaw could have let hackers infiltrate any user – patch now

Security researchers have found a critical vulnerability in Microsoft Entra ID which could have allowed threat actors to gain Global Administrator access to virtually anyone’s tenant – without being detected in any way. The vulnerability consists of two things – Read More …

Disrupted phishing service was after Microsoft 365 credentials

Microsoft and Cloudflare have disrupted a Phishing-as-a-Service operation, known as RaccoonO365. The primary goal of RaccoonO365 (or Storm-2246 as Microsoft calls it) was to rent out a phishing toolkit that specialized in stealing Microsoft 365 credentials. They were successful in Read More …