* Affecting a lot of people at Lockheed says one source
* Lockheed declines to discuss any specific threat
* Says policies in place to ensure security
(Adds further detail, comments by technology experts)
By Andrea Shalal-Esa and Jim Finkle
WASHINGTON/BOSTON, May 26 Lockheed Martin Corp
(LMT.N), the Pentagon's No. 1 supplier, is experiencing a major
disruption to its computer systems that could be related to a
problem with network security, two sources familiar with the
issue said on Thursday.
Lockheed, the biggest provider of information technology to
the U.S. government, is grappling with "major internal computer
network problems," said one of the sources who was not
authorized to publicly discuss the matter.
A second source, who also asked not to be identified, said
the issue was "affecting a lot of people" at Lockheed, maker of
the stealthy F-22 and F-35 fighter planes and other critical
Lockheed, which employs 133,000 people worldwide and had
$45.8 billion in revenues last year, said it did not discuss
specific threats or responses as a matter of principle, but
regularly took actions to counter threats and ensure security.
"We have policies and procedures in place to mitigate the
cyber threats to our business, and we remain confident in the
integrity of our robust, multilayered information systems
security," said spokesman Jeffery Adams.
Big corporations -- especially government contractors --
keep matters of internal security secret and rarely publicly
disclose problems in securing their networks.
The sources said Lockheed employees were still able to use
mobile devices to access their company email accounts.
The slowdown began on Sunday after security experts for the
company detected an intrusion to the network, according to
technology blogger Robert Cringely. He said it involved the use
of SecurID tokens that employees use to access Lockheed's
internal network from outside its firewall,
A spokesman for EMC Corp EMC.N, whose RSA division makes
the tokens, declined to comment, saying it is company policy to
never discuss security issues affecting specific customers.
EMC disclosed in March that hackers had broken into its
network and stolen some information related to its SecurIDs. It
said that the information could potentially be used to reduce
the effectiveness of those devices in securing a customer's
Steve Winterfeld, cyber technical lead at TASC, an advanced
systems company spun off from Northrop Grumman Corp (NOC.N),
said RSA had not provided any details of how hackers broke into
its network, which meant the hackers could have used the same
method to attack other corporations.
He said TASC and other companies were extremely concerned
about the breach, which meant that the SecurID tokens could no
longer be viewed as completely secure.
"You have no idea how many people are freaked out right
now," Winterfeld told Reuters. "TASC is no longer treating the
RSA device as if it were as secure as it was beforehand."
(Reporting by Jim Finkle and Andrea Shalal-Esa; Editing by Tim