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Category — Hacking Microsoft Office Outlook
Microsoft Pays $13,000 to Hacker for Finding Authentication Flaw

Microsoft Pays $13,000 to Hacker for Finding Authentication Flaw

Apr 04, 2016
A security researcher has won $13,000 bounty from Microsoft for finding a critical flaw in its main authentication system that could allow hackers to gain access to a user's Outlook, Azure and Office accounts. The vulnerability has been uncovered by UK-based security consultant Jack Whitton and is similar to Microsoft's OAuth CSRF (Cross-Site Request Forgery) in Live.com discovered by Synack security researcher Wesley Wineberg. However, the main and only difference between the vulnerabilities is that: Flaw discovered by Wineberg affected Microsoft's OAuth protection mechanism while the one discovered by Whitton affected Microsoft's main authentication system. Microsoft handles authentication across its online services including Outlook, Azure and Office through requests made to login.live.com, login.windows.net, and login.microsoftonline.com. Now, for example, if a user browses to outlook.office.com, he/she redirects to a login.microsoftonline...
Microsoft will Inform You If Government is Spying on You

Microsoft will Inform You If Government is Spying on You

Dec 31, 2016
Following in the footsteps of Twitter, Facebook and Google, Microsoft promises to notify users of its e-mail ( Outlook ) and cloud storage ( OneDrive ) services if government hackers may have targeted their accounts. The company already notifies users if an unauthorized person tries to access their Outlook or OneDrive accounts. But from now on, the company will also inform if it suspects government-sponsored hackers. Ex-Employee: Microsoft Didn't Notify When China Spied Tibetans Leaders The move could be taken in the wake of the claims made by Microsoft's former employees that several years ago Chinese government hacked into more than a thousand Hotmail email accounts of international leaders of Tibetan and Uighur minorities , but the company decided not to tell the victims, allowing the hackers to continue their campaign. Instead of alerting those leaders of the hacking attempts, Microsoft simply recommended them to change their passwords without disclosi...
What Is Attack Surface Management?

What Is Attack Surface Management?

Feb 03, 2025Attack Surface Management
Attack surfaces are growing faster than security teams can keep up – to stay ahead, you need to know what's exposed and where attackers are most likely to strike. With cloud adoption dramatically increasing the ease of exposing new systems and services to the internet, prioritizing threats and managing your attack surface from an attacker's perspective has never been more important. In this guide, we look at why attack surfaces are growing and how to monitor and manage them properly with  tools like Intruder . Let's dive in. What is your attack surface? First, it's important to understand what we mean when we talk about an attack surface. An attack surface is the sum of your digital assets that are 'reachable' by an attacker – whether they are secure or vulnerable, known or unknown, in active use or not. You can also have both internal and external attack surfaces - imagine for example a malicious email attachment landing in a colleague's inbox, vs a new FTP server being...
New Attack Targeting Microsoft Outlook Web App (OWA) to Steal Email Passwords

New Attack Targeting Microsoft Outlook Web App (OWA) to Steal Email Passwords

Oct 06, 2015
Researchers have unearthed a dangerous backdoor in Microsoft's Outlook Web Application (OWA) that has allowed hackers to steal e-mail authentication credentials from major organizations. The Microsoft Outlook Web Application or OWA is an Internet-facing webmail server that is being deployed in private companies and organisations to provide internal emailing capabilities. Researchers from security vendor Cybereason discovered a suspicious DLL file loaded into the company's OWA server that siphoned decrypted HTTPS server requests. Although the file had the same name as another benign DLL file, the suspicious DLL file was unsigned and loaded from another directory. Hackers Placed Malicious DLL on OWA Server According to the security firm, the attacker replaced the OWAAUTH.dll file ( used by OWA as part of the authentication mechanism ) with one that contained a dangerous backdoor. Since it ran on the OWA server, the backdoored DLL file allowed hacker...
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