How do I know that an automatic update is genuine?
Yesterday, when opening 'Firefox' I was very worried to be presented with a large window, within the Firefox window, that told me that my computer was at risk and that I should download this update. There was no way to chose if I wished to do this at a later date, cancel or close the window. As I did not know what to do, I closed all the programmes running, except Firefox and then shut down my computer. Today I started up my computer and did a virus scan that was clear. I then opened up Firefox, from where I am sending this message. I have not received the same message today. MY QUESTION IS: HOW DO I KNOW THAT THE MESSAGE I RECEIVED IS GENUINE?
Re-reading the above message, I realise that I did not mention that the message window I received said it was a 'Firefox' message telling me that there was a problem and I needed to update Firefox by 'clicking' on this window. How could I tell that it was genuine from Firefox and not a scam?
由Jkaker于修改
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To ensure you are safe, use the built-in update system. In the Help menu select "Check for updates" and it will offer to upgrade you to Firefox 4
Was the screen that popped-up offering to update Firefox or warning that your system might be infected? If the latter, there is a new infection spreading to web hosts:
- http://community.websense.com/blogs/securitylabs/archive/2011/03/31/update-on-lizamoon-mass-injection.aspx (scroll down to look at the images that users might see on their monitor when visiting one of the infected web hosts)
- Also see: http://arstechnica.com/security/news/2011/03/massive-sql-injection-attack-making-the-rounds694k-urls-so-far.ars
由Helper7677于修改