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Microsoft Secure

Sharing research and discoveries at PWN2OWN

The annual PWN2OWN exploit contest at the CanSecWest conference in Vancouver, British Columbia, Canada, brings together some of the top security talent from across the globe in a friendly competition. For the participants, these events are a platform to demonstrate world-class skills and vie for significant cash prizes. For companies like Microsoft, where we have...

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A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017

Adopting reliable attack methods and techniques borrowed from more evolved threat types, ransomware attained new levels of reach and damage in 2017. The following trends characterize the ransomware narrative in the past year: Three global outbreaks showed the force of ransomware in making real-world impact, affecting corporate networks and bringing down critical services like hospitals,...

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New tech support scam launches communication or phone call app

(Note: Our Tech support scams FAQ page has the latest info on this type of threat, including scammer tactics, fake error messages, and the latest scammer hotlines. You can also read our latest blog, Teaming up in the war on tech support scams.)   A new tech support scam technique streamlines the entire scam experience,...

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Mitigating and eliminating info-stealing Qakbot and Emotet in corporate networks

The threat to sensitive financial information is greater than ever. Data breaches, phishing attacks, and other forms of information theft are all too common in today’s threat landscape. Point-of-sale systems and ATMs have been targeted by hackers. Information-stealing trojans pose a risk to data and can lead to significant financial loss. Qakbot and Emotet are...

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Making Microsoft Edge the most secure browser with Windows Defender Application Guard

Innovation in the attack space is constant as adversaries increase in both determination and sophistication. In response to increased investments in defense, attackers are adapting and improving tactics at breakneck speed. The good news is that defenders are also innovating and disrupting long reliable attack methods with new technologies. In Windows 10 we’re not just...

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Browser security beyond sandboxing

Security is now a strong differentiator in picking the right browser. We all use browsers for day-to-day activities like staying in touch with loved ones, but also for editing sensitive private and corporate documents, and even managing our financial assets. A single compromise through a web browser can have catastrophic results. It doesn’t help that...

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Links in phishing-like emails lead to tech support scam

Modern social engineering attacks use non-portable executable (PE) files like malicious scripts and macro-laced documents. Every month, Windows Defender AV detects non-PE threats on over 10 million machines. Learn how machine learning drives next-gen protection capabilities and cloud-based, real-time blocking of new and unknown threats: Machine learning vs. social engineering (Note: Our Tech support scams...

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Tech support scams persist with increasingly crafty techniques

(Note: Our Tech support scams FAQ page has the latest info on this type of threat, including scammer tactics, fake error messages, and the latest scammer hotlines. You can also read our latest blog, Teaming up in the war on tech support scams.)   Millions of users continue to encounter technical support scams. Data from...

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Breaking down a notably sophisticated tech support scam M.O.

(Note: Our Tech support scams FAQ page has the latest info on this type of threat, including scammer tactics, fake error messages, and the latest scammer hotlines. You can also read our latest blog, Teaming up in the war on tech support scams.)   The cornerstone of tech support scams is the deception that there...

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Ransomware: A declining nuisance or an evolving menace?

The volume of ransomware encounters is on a downward trend. Are we seeing the beginning of the end of this vicious threat? Unfortunately, a look at the attack vectors, the number of unique families released into the wild, and the improvements in malware code reveals otherwise. The trend towards increasingly sophisticated malware behavior, highlighted by...

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