Microsoft joined Facebook and Apple on Friday on the list of US technology titans targeted in recent cyberattacks.
reported by Facebook and Apple, Microsoft can confirm that we also
recently experienced a similar security intrusion," Trustworthy
Computing team general manager Matt Thomlinson said in a blog post.
our investigation, we found a small number of computers, including some
in our Mac business unit, that were infected by malicious software
using techniques similar to those documented by other organizations."
There was no evidence customer data was stolen but an investigation into the attack was continuing, according to Thomlinson.
type of cyberattack is no surprise to Microsoft and other companies
that must grapple with determined and persistent adversaries," he said.
said Tuesday that hackers invaded its system in an attack similar to
one recently carried out against Facebook, but that it repelled the
intruders before its data was plundered.
The maker of iPhones,
iPads, iPods and Macintosh computers said it was working with law
enforcement officials to hunt down the hackers, who appeared tied to a
series of recent cybe attacks on US technology firms.
was employed in an attack against Apple and other companies, and was
spread through a website for software developers," Apple told AFP.
malicious software, or malware, took advantage of a vulnerability in a
Java program used as a "plug-in" for Web-browsing programs.
"small number" of computer systems at Apple were infected but they were
isolated from the main network, according the Silicon Valley-based
"There is no evidence that any data left Apple," Apple said.
of hackers hitting Apple came just days after leading social network
Facebook said it was "targeted in a sophisticated attack" last month,
but that no user data was compromised.
Facebook said malware that infected some of its machines came from a mobile developer website that had been booby-trapped.
this month, Twitter said it was hammered by a cyber-attack similar to
those that recently hit major Western news outlets, and that the
passwords of about 250,000 users were stolen.
While those behind
the attacks had yet to be identified, computer security industry
specialists have expressed suspicions about China-sponsored hackers and
Eastern European crime gangs.