Email accounts went down for thousands of Microsoft users on Thursday, with reports of outages spiking Thursday between 11 a.m. and noon.

A 39-year-old U.K. resident has been arrested and charged with operating a hack-to-trade fraud, which generated millions of dollars by hacking Microsoft Office 365 email accounts. The alleged hacker, ...

Beware this highly sophisticated Microsoft 365 attack. Update, March 15, 2025: This story, originally published March 13, has been updated with further technical detail regarding the Microsoft 365 ...

A new report from cybersecurity services company Group-IB Global Pvt. Ltd. warns of a largely unknown threat actor that is running a “phishing empire” targeting Microsoft 365 accounts. The group, ...

A new phishing-as-a-service (PhaaS) platform called ONNX Store is targeting Microsoft 365 accounts for employees at financial firms using QR codes in PDF attachments. The platform can target both ...

Some 3% of Microsoft 365 accounts at the US Department of Justice were breached by the attackers behind the SolarWinds attacks, the DoJ announced today. The attacks, which the FBI, Cybersecurity & ...

Being locked out of your Microsoft 365 administrator account can be a stressful experience, as it prevents you from managing users and services. This typically occurs due to security features, such as ...

Cybercriminals are promoting malicious Microsoft OAuth apps that masquerade as Adobe and DocuSign apps to deliver malware and steal Microsoft 365 accounts credentials. The campaigns were discovered by ...

The account isn’t associated with this Office product error usually occurs due to incorrect account details or a blocked user account. You can fix it by signing out ...