PayPal users should I get & use the Security Key?

Code:

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https://www.paypal.com/cgi-bin/webscr?cmd=xpt/cps/general/FAQPPSecurityKey-outside

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Quote:

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Why should I use the PayPal Security Key?
Because it gives you an extra layer of security when you log in to your PayPal or eBay account. Most websites keep your online account safe by only asking for your user name and password to verify your identity. The PayPal Security Key gives you an additional security code that only you know about. That makes your account more resistant to intrusion. Plus, the Security Key's easy to use.

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PayPal users should I get & use the Security Key? It's $5 btw. Thanks.

Only $5...
If you use Paypal regularly and/or you're really worried about your account then go for it.

Thanks. I bought it. It also works all Verisign secured sites.