Security News
A preview of Microsoft Office LTSC 2024, a volume-licensed and perpetual version of Office for commercial customers, is now available for Windows and macOS users. Office LTSC 2024 for commercial preview, Visio 2024 preview, and Project 2024 preview.
A new phishing campaign is targeting U.S. organizations with the intent to deploy a remote access trojan called NetSupport RAT. Israeli cybersecurity company Perception Point is tracking the...
Microsoft today released a defense-in-depth update for Microsoft Office that prevents exploitation of a remote code execution vulnerability tracked as CVE-2023-36884 that threat actors have already leveraged in attacks. In today's Microsoft August Patch Tuesday, the update helps fix CVE-2023-36884, a security issue disclosed in July, which Microsoft did not patch at the time but provided mitigation advice.
The main executable for the Microsoft Publisher application has already been confirmed that it can download payloads from a remote server. According to recent research, even executables that are not signed by Microsoft serve purposes that are useful in attacks, such as reconnaissance.
Office Open XML Signatures, an Ecma/ISO standard used in Microsoft Office applications and open source OnlyOffice, have several security flaws and can be easily spoofed. Microsoft refers to the format simply as Open XML. The boffins say they found discrepancies in the structure of office documents and the way signatures get verified.
British outsourcing services provider Capita announced today that a cyberattack on Friday prevented access to its internal Microsoft Office 365 applications. The cyber incident prompted the Capita on March 31 to announce an IT issue that impacted its internal systems.
New research from Microsoft's Threat Intelligence team exposed the activities of a threat actor named DEV-1101, which started advertising for an open-source phishing kit to deploy an adversary-in-the-middle campaign. According to Microsoft, the threat actor described the kit as a phishing application with "Reverse-proxy capabilities, automated setup, detection evasion through an antibot database, management of phishing activity through Telegram bots, and a wide range of ready-made phishing pages mimicking services such as Microsoft Office or Outlook."
New research has disclosed what's being called a security vulnerability in Microsoft 365 that could be exploited to infer message contents due to the use of a broken cryptographic algorithm. Office 365 Message Encryption is a security mechanism used to send and receive encrypted email messages between users inside and outside an organization without revealing anything about the communications themselves.
Microsoft Office 365 Message Encryption claims to offer a way "To send and receive encrypted email messages between people inside and outside your organization." Office 365 Message Encryption relies on a strong cipher, AES, but WithSecure says that's irrelevant because ECB is weak and vulnerable to cryptanalysis regardless of the cipher used.
We're not quite sure what to call it right now, so we referred to it in the headline by the hybrid name Microsoft Office 365. The web-based versions of the Office tools don't have the same feature set as the full apps, so any results we might obtain are unlikely to align with how most business users of Office, ah, 365 have configured Word, Excel, Outlook and friends on their Windows laptops.