Attacks/Breaches
10/6/2009
03:24 PM
50%
50%

Microsoft Blocks Hacked Hotmail Accounts

Phishing scam may also have breached e-mail services offered by Google and Yahoo.

Microsoft has taken the extraordinary step of blocking all access to thousands of Hotmail e-mail accounts that were compromised as a result of massive Internet phishing scam.

"Several thousand Windows Live Hotmail customers' credentials were exposed on a third-party site," as a result of the scam, Microsoft officials conceded in a blog post Monday.

"As a result of our investigation we are taking measures to block access to all of the accounts that were exposed and have resources in place to help those users reclaim their accounts," the officials said.

Meanwhile, it's been reported that the hackers may also have targeted Google and Yahoo e-mail accounts.

Microsoft said the criminals who breached users' Hotmail accounts did so without penetrating the company's servers.

"We determined that this was not a breach of internal Microsoft data and initiated our standard process of working to help customers regain control of their accounts," Microsoft officials said.

Phishing is a fraudulent scheme carried out by cyber-criminals.

It involves tricking Internet users into providing passwords and other sensitive data to Web sites that mimic in almost every detail the legitimate, commercial sites operated by banks, online retailers, and other businesses that offer e-commerce services.

Often, Web surfers are directed to the bogus sites through links contained directly in an e-mail or in an e-mail attachment.

Microsoft is advising customers who believe they've been victimized by a phishing scheme to immediately update their accounts by changing their passwords and answers to security questions.

The company also recommends that Web users change their passwords every 90 days even if they haven't fallen victim to hackers.

Microsoft said it's cooperating with law enforcement authorities investigating the attacks.

bMighty has published a report on the secrets of e-mail management. Download the report here (registration required). Also, visit bMighty's IT Management How-To Center here.

Comment  | 
Print  | 
More Insights
Register for Dark Reading Newsletters
White Papers
Cartoon
Current Issue
Flash Poll
Video
Slideshows
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2015-0750
Published: 2015-05-22
The administrative web interface in Cisco Hosted Collaboration Solution (HCS) 10.6(1) and earlier allows remote authenticated users to execute arbitrary commands via crafted input to unspecified fields, aka Bug ID CSCut02786.

CVE-2012-1978
Published: 2015-05-21
Multiple cross-site request forgery (CSRF) vulnerabilities in Simple PHP Agenda 2.2.8 and earlier allow remote attackers to hijack the authentication of administrators for requests that (1) add an administrator via a request to auth/process.php, (2) delete an administrator via a request to auth/admi...

CVE-2015-0741
Published: 2015-05-21
Multiple cross-site request forgery (CSRF) vulnerabilities in Cisco Prime Central for Hosted Collaboration Solution (PC4HCS) 10.6(1) and earlier allow remote attackers to hijack the authentication of arbitrary users, aka Bug ID CSCut04596.

CVE-2015-0742
Published: 2015-05-21
The Protocol Independent Multicast (PIM) application in Cisco Adaptive Security Appliance (ASA) Software 9.2(0.0), 9.2(0.104), 9.2(3.1), 9.2(3.4), 9.3(1.105), 9.3(2.100), 9.4(0.115), 100.13(0.21), 100.13(20.3), 100.13(21.9), and 100.14(1.1) does not properly implement multicast-forwarding registrati...

CVE-2015-0746
Published: 2015-05-21
The REST API in Cisco Access Control Server (ACS) 5.5(0.46.2) allows remote attackers to cause a denial of service (API outage) by sending many requests, aka Bug ID CSCut62022.

Dark Reading Radio
Archived Dark Reading Radio
Join security and risk expert John Pironti and Dark Reading Editor-in-Chief Tim Wilson for a live online discussion of the sea-changing shift in security strategy and the many ways it is affecting IT and business.