Twitter says 250,000 accounts have been hacked in security breach

Anonymous hackers were able to gain access to usernames,
email addresses and passwords in 'sophisticated' operation
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذه الصورة]

A quarter of a million Twitter users have had their accounts hacked
in the latest in a string of high-profile security breaches
at [ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط] firms.
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط] hackers were able to gain access
to around 250,000 accounts on the social networking site,
including usernames, email addresses and passwords.
[ندعوك للتسجيل في المنتدى أو التعريف بنفسك لمعاينة هذا الرابط] it had detected
unusual access patterns across the network
and had identified unauthorised attempts to
access user data that had led to accounts being compromised.
The site discovered one live attack that it was able to shut down
several minutes later but not before the hackers
had gained access to thousands of accounts.
Bob Lord, Twitter's director of information security,
said the attack was "not the work of amateurs"
and the company did not believe it was an isolated incident.
"Our investigation has thus far indicated that the attackers
may have had access to limited user information –
usernames, email addresses, session tokens
and encrypted/salted versions of passwords –
for approximately 250,000 users," Lord said.
"As a precautionary security measure,
we have reset passwords and revoked session
tokens for these accounts.
"This attack was not the work of amateurs,
and we do not believe it was an isolated incident.
The attackers were extremely sophisticated,
and we believe other companies and organizations
have also been recently similarly attacked."
The attack on Twitter is the latest in a string of
high-profile security breaches on US technology
and media companies. Both the Wall Street Journal
and the New York Times have had their sites hacked
in the last two weeks and Apple and Mozilla
have turned off Java by default in their browsers to
minimise the risk.
Twitter users who have had their accounts breached
will have to reset their passwords before
they will have access to the site.