Pierluigi Paganini
October 28, 2024
ReliaQuest researchers observed Black Basta affiliates relying on Microsoft Teams to gain initial access to target networks. ReliaQuest researchers warn that Black Basta ransomware affiliates switched to Microsoft Teams, posing as IT support to deceive employees into granting access. The BlackBasta ransomware operators were spotted posing as corporate help desks and contacting employees to help […]
Pierluigi Paganini
August 03, 2023
Russia-linked APT29 group targeted dozens of organizations and government agencies worldwide with Microsoft Teams phishing attacks. Microsoft Threat Intelligence reported that Russia-linked cyberespionage group APT29  (aka SVR group, Cozy Bear, Nobelium, Midnight Blizzard, and The Dukes) carried out Microsoft Teams phishing attacks aimed at dozens of organizations and government agencies worldwide. APT29 along with APT28 cyber espionage group was involved in […]
Pierluigi Paganini
August 08, 2022
Microsoft is actively blocking Tutanota email addresses from registering a Microsoft Teams account. Tutanota is an end-to-end encrypted email app and a freemium secure email service, as of March 2017, Tutanota’s owners claimed to have over 2 million users. The news is that Microsoft is actively blocking Tutanota email addresses from registering a Microsoft Teams […]
Pierluigi Paganini
February 17, 2022
Attackers compromise Microsoft Teams accounts to attach malicious executables to chat and spread them to participants in the conversation. While the popularity of Microsoft Teams continues to grow, with roughly 270 million monthly active users, threat actors started using it as an attack vector. Starting in January 2022, security researchers from Avanan observed attackers compromising […]
Pierluigi Paganini
December 23, 2021
Researchers disclosed four vulnerabilities in the Teams business communication software, but Microsoft will not address three of them. Researchers from cybersecurity firm Positive Security discovered four vulnerabilities in the Teams business communication software that could allow accessing internal Microsoft services, spoofing the link preview, and, for Android users, leaking their IP address, and triggering a […]
Pierluigi Paganini
December 08, 2020
Security expert disclosed technical details about a wormable, cross-platform flaw in Microsoft Teams that could allow stealth attacks. Security researcher Oskars Vegeris from Evolution Gaming has published technical details on a wormable, cross-platform vulnerability in the business communication platform Microsoft Teams. The flaw is a cross-site scripting (XSS) issue that impacts the âteams.microsoft.comâ domain, it […]
Pierluigi Paganini
November 10, 2020
Ransomware operators use fake Microsoft Teams updates to deploy Cobalt Strike and compromise the target networks. Ransomware operators are using malicious fake Microsoft Teams updates to deliver backdoors that lead the installation of the Cobalt Strike post-exploitation tool and compromise the target network. The ongoing COVID-19 pandemic is forcing a growing number of organizations and […]
Pierluigi Paganini
October 24, 2020
Experts warn of a phishing campaign that already targeted up to 50,000 Office 365 users with a fake automated message from Microsoft Teams. Secruity researchers reported that up to 50,000 Office 365 users have been targeted by a phishing campaign that pretends to be automated message from Microsoft Teams. The bait message uses fake notifications […]
Pierluigi Paganini
May 02, 2020
Phishing attacks impersonating notifications from Microsoft Teams targeted as many as 50,000 Teams users to steal Office365 logins. Abnormal Security experts observed two separate phishing attacks impersonating notifications from Microsoft Teams that targeted as many as 50,000 Teams users to steal Office365 logins. The popularity of Microsoft Teams has spiked as a result of the […]
Pierluigi Paganini
April 27, 2020
Experts discovered how to take over Microsoft Teams accounts by just sending recipients a regular GIF, it works for both desktop and web Teams versions. Microsoft has addressed a vulnerability in Teams workplace video chat and collaboration platform that could have allowed attackers to take Team accounts by sending participants a malicious link to an […]
