Nokia takes all security issues seriously, and we work constantly to enhance security features in all of our products. Up to date, Nokia believes the current security threat is relatively small and unlikely to mirror the risk profile of the fixed Internet.

• The main advice to users is that they should exercise caution when accepting applications sent via Bluetooth or opening attachments to MMS as they may include software harmful to your phone or PC.
• The users should not approve or download content to a mobile device from an unknown or unreliable source.

Trusted sources may include operator portals and other well-known brands, such as the Nokia Software Market.

Nokia is aware of the reports concerning the malware CommWarrior, and its variation CommWarrior.C.The potentially affected Nokia devices include those running on the S60 Platform. According to Nokia's analysis to date, the malware CommWarrior.C attempts to spread from an infected mobile device using three methods:

1. Through Multimedia Messaging (MMS) by
   • sending infected MMS's - based on already existing messages on the phone - to randomly selected addresses from the phonebook. This may confuse recipients to accept the installation of the malware.
   • attempting to reply with an infected MMS to all incoming messages. Also, if the phone user sends a SMS, CommWarrior.C attempts to send an infected MMS to the same recipient.
   • when the phone user replies to an SMS or MMS message, CommWarrior.C attempts to open a "Commwarrior" Web-page using the phone's Web browser.
2. It attempts to send a copy of itself to mobile devices that have the Bluetooth connection set to "visible" mode.
3. It may infect an MMC Card that may spread the malware back to the phone after the malware has been removed from the device.

To date, the most efficient way to prevent any mobile malware, including Commwarrior, is not to accept the installation of the suggested malware on the phone. In the case of CommWarrior.C, the name of the suggested infected application is CWOutcast.

Consumers who suspect their mobile phone is infected by malware CommWarrior are recommended to contact the Nokia Customer Care Line in their home country for more information. Malware can also be removed with a free removal tool, if antivirus software is not installed on the device.

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Further updates will be provided on this website when necessary.
Consumers are welcome to contact the Nokia Customer Care Line in their home country for more information.