Engineering Blog

Blog posts tagged 'Security'

Andrew SongProduct manager at Facebook

Introducing Login Approvals

Posted about 7 years ago
blog post · Web · Culture · Mobile · Security · Platform · User Experience

Facebook has always been committed to both protecting our users' account and information, as well as giving them more control over their Facebook experience. From our User Operations team, who work to re-secure compromised accounts, to the Engineering team that designs and implements new security features like login notifications, one-time passwords, and remote session management, everyone at Facebook is working to ensure users have a safe, enjoyable experience. Read more...

Matt JonesEngineering

Protecting Privacy with Referrers

Posted about 8 years ago
blog post · Web · Data · Security · User Experience · JavaScript

Late last week, we quickly fixed an issue after being contacted by a Wall Street Journal reporter regarding an unintentional oversight in the data shared with our advertisers by your browser when you click some ads on Facebook. This occurred in the referrer link visible to advertisers when someone clicked on an ad. A little background: In some cases the referrer could contain the user ID of a profile you visited, including your own, but we were not aware of any way that a user ID on the referrer could identify the person who clicked on the ad. We've been testing different solutions to remove user IDs completely from referrer URLs since their inclusion was first brought to our attention. However, in a rarely occurring case, advertisers knowledgeable about the structure of Facebook's URLs could use the referrer to determine when someone who clicked on an ad had been viewing his or her own profile, thus potentially enabling them to infer the user ID of that person. We have no reason to believe that any advertisers were exploiting this, and doing so would have been a violation of our terms. To our knowledge, none did. It's also important to point out that we don't share personal information with advertisers, and we never sell any of your information to anyone. Read more...

Chris PutnamEngineering at Facebook

Building a Better Photo Uploader

Posted about 8 years ago
blog post · Web · Photos · JavaScript · Security · Performance · User Experience

At Facebook, we're always looking for ways to make sharing more efficient. Today we're announcing a significant upgrade to our Photos product: a new and improved photo uploader that’s available for testing as a Facebook Prototype. Since Photos launched in 2005, the photo-uploading experience on Facebook has relied on the use of a third-party ActiveX control (and its sister Java applet). Over the years we have seen a growing number of complaints with this old uploader. In a recent poll, we discovered a significant percentage of users were unable to upload photos due to technical issues. Many more found it functional, but only just. That's when we resolved to build a modern replacement. We had the following goals for the new uploader:. Read more...

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