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New ways we're fighting spam in Hotmail
Hotmail's fight against spam has certainly come a long way in the last five years. Over the last several years we've made substantial investments in the research and development of sophisticated anti-spam technologies. SmartScreen is the collective name we use for a cloud-based set of technologies and...
Thu, May 20 2010
Outsmarting social engineering threats with SmartScreen
I wanted to talk about a new user safety feature we just introduced in Wave 4: SmartScreen for URLs This safety feature is another step Windows Live is taking to protect you from socially engineered attacks and account abuse. This abuse is an industry-wide problem, and we've seen a significant uptick...
Tue, Jul 6 2010
Preventing spam and phishing using e-mail authentication
Hi, my name is John Scarrow and, in conjunction with other product groups, I oversee service abuse and security issues for Windows Live and other Microsoft products such as Internet Explorer. Building from Dick Craddock’s previous post , I’m going to get into the nuts and bolts of how we fight phishing...
Thu, Feb 4 2010
Hotmail security updates protect you from account hijackers
Not too long ago, account hijacking was an issue limited mostly to financial service websites. Now the practice has grown to threaten other web services like email, disrupting millions of accounts every year. When an email account is compromised by hijackers, it violates the privacy of the account owner...
Mon, Sep 27 2010
Fighting the war on spam
Every e-mail system has spam, and Hotmail is no exception. However, our SmartScreen™ spam-fighting system is one of the most effective in the industry. This post will give you the inside scoop on how we use it to fight the menace that is spam, and what you can do to help. Spam is war Why do people send...
Tue, Jan 12 2010
Data security and privacy in Windows Live
Windows Live is entrusted with safekeeping the email, contacts, photos, documents, and more that over 500 million people bring to our services each month. Today is worldwide Data Privacy Day , and we’re observing it by focusing on a critical way to help keep your data private: protecting it from account...
Fri, Jan 28 2011
Now SmartScreen automatically identifies more than one billion newsletters every day
SmartScreen®—it’s not just for spam anymore. The latest release of Hotmail uses Microsoft SmartScreen to automatically identify more than a billion newsletters every day. Since newsletters account for more than a quarter of all the mail in a typical inbox, having them automatically categorized is a big...
Fri, Jan 13 2012
Getting a reputation: How SmartScreen looks at URLs
I'd like to talk a bit about how we determine the reputation of different URLs and IPs and use this to protect against spam, phishing, and other abuse in Internet Explorer and Windows Live Hotmail . Let's start with a bit of background. When an abuser–a spammer, phisher, or malware distributer–attacks...
Fri, Mar 12 2010
Hotmail declares war on graymail
In previous posts on our blog, we talked about how we’ve reduced true spam in the inbox to under 3% using SmartScreen™ filtering. But we realized that getting rid of true spam wasn’t enough, because 75% of the email messages that people reported as spam are really legitimate newsletters, offers, or notifications...
Mon, Oct 3 2011
Hotmail thanks you for a great 15 years
This past Monday, July 4 th , the Hotmail team celebrated our 15th birthday ! This is a big milestone for us, and we thought it was a good time to look back at the past year and share how some of our recent changes are being used. The first 15 years have been busy, and none more so than this past year;...
Mon, Jul 4 2011
Spam, phishing, and other annoyances
This post will give a bit more depth on SmartScreen® and our approach to spam filtering, and on a particularly evil kind of spam called a phishing attack. I'll' also explain why individual e-mail accounts experience different levels of spam, and what you can do to reduce spam in your own account...
Wed, Jan 20 2010
Just say no to bogus Messenger invitations
Windows Live Messenger is both a powerful and fun communications tool for staying in touch with your friends, family and co-workers. It is a semi-enclosed environment where you can freely interact with the people you know and trust – the people in your network. Unfortunately, over the last couple...
Mon, Mar 29 2010
90% less spam in Hotmail, 15% less spam on the Internet
In our war on spam, we’re making real progress. We’ve cut spam in Hotmail inboxes by 90% from its peak. We’ve played a key role in reducing spam on the Internet by 15% from its peak. And we’ve made it harder for spammers to use Hotmail to send spam – reducing “outbound spam” from Hotmail by 75%. Last...
Wed, Aug 3 2011
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