50 million facebook users under attack- Mark Zuckerberg

Mark Zuckerberg in his speech noted “I want to update you on an important security issue we’ve identified. We patched the issue last night and are taking
precautionary measures for those who might have been affected.
We’re still investigating, but I want to share what we’ve already
found:
On Tuesday, we discovered that an attacker exploited a technical
vulnerability to steal access tokens that would allow them to log
into about 50 million people’s accounts on Facebook.
We do not yet know whether these accounts were misused but we
are continuing to look into this and will update when we learn
more.
We’ve already taken a number of steps to address this issue:
1. We patched the security vulnerability to prevent this attacker or
any other from being able to steal additional access tokens. And
we invalidated the access tokens for the accounts of the 50 million
people who were affected – causing them to be logged out. These
people will have to log back in to access their accounts again. We
will also notify these people in a message on top of their News
Feed about what happened when they log back in.
2. As a precautionary measure, even though we believe we’ve
fixed the issue, we’re temporarily taking down the feature that had
the security vulnerability until we can fully investigate it and make
sure there are no other security issues with it. The feature is called
“View As” and it’s a privacy tool to let you see how your own profile
would look to other people.
3. As an additional precautionary measure, we’re also logging out
everyone who used the View As feature since the vulnerability was
introduced. This will require another 40 million people or more to
log back into their accounts. We do not currently have any
evidence that suggests these accounts have been compromised,
but we’re taking this step as a precautionary measure.
We face constant attacks from people who want to take over
accounts or steal information around the world. While I’m glad we
found this, fixed the vulnerability, and secured the accounts that
may be at risk, the reality is we need to continue developing new
tools to prevent this from happening in the first place. If you’ve
forgotten your password or are having trouble logging in, you can
access your account through the Help Center.
There’s more detail in Guy’s post below, and we’ll update you as
our investigation continues.

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4 Comments

  1. Good

  2. That’s good news.

  3. Facebook Is The Best

  4. Okay

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