A report by Sophos in August 2004 claimed that Jaschan's viruses were responsible for 70% of the infections seen in the first half of that year.
Chester Wisniewski, a senior security advisor at Sophos, a computer security company, stated in 2011 that spam messages posted on Yahoo! Groups bypass spam filters by way of using digital signatures.
Sophos |
In 2006, anti-virus company Sophos discovered a computer worm known as "W32/Hoots-A", which sends a graphical image of a snowy owl with the letters "O RLY?" to a print queue when it infects a Windows-based computer.