This petition is to prevent Microsoft from forcing users of the Windows Live Messenger app/service to migrate to the app/service Skype, as Skype has many more security flaws than Windows Live Messenger that could lead to the compromise of the personal and legal data of its users, such as the Shylock banking trojan that has the ability to spread over skype, but not Windows Live Messenger.

Stated here is a list of known, but not all, security issues with links to information articles on them as well.

Shylock Banking Trojan.

http://thehackernews.com/2013/01/shylock-banking-malware-spreads-via.html

DorkBot Ransomware.

 http://thehackernews.com/2012/10/ransomware-malware-targeting-skype-users.html

Mislead Message Bug.

http://thehackernews.com/2012/07/skype-privacy-bug-that-can-send.html

User IP Lookup Script

http://thehackernews.com/2012/05/skype-vulnerability-exposing-user-ip.html

Mac Skype Remote Access Flaw

http://thehackernews.com/2011/05/security-alert-skype-for-mac-has.html

IPhone Skype Address Book Theft Bug

http://thehackernews.com/2011/09/iphone-skype-xss-vulnerability-lets.html

Windows XP/Vista HTML/JAVASCRIPT Injection Vulnerbility 

http://thehackernews.com/2011/08/skype-zero-day-htmljavascript-code.html

Denial of Service Attack Vulnerbility 

http://thehackernews.com/2012/03/corruption-and-persistent-vulnerability.html