If the original sent to you was by E-mail, then it's almost guaranteed to be a phishing attack, and if you go to the link page, it will be used to steal your information, as it will be capturing the data after silently redirecting you to Paypal. That way, the owner/operator of the phishing site has all he/she needs to be able to access your account without your knowledge/approval
Paypal state clearly in their terms and conditions that they will NEVER ask you to click a link in a message from them, they always insist that you ONLY sign on to their system from your machine using the method you prefer, NEVER from a link in a message. THey may well communicate with you by E-mail, but never with a link to get to their site.
This sort of thing is unfotunately all too common, and it does NOT originate from Paypal, it is an attempt at fraud.
Another way to check.
Paypal know your name, and will address anything they send out to you personally, not as in this case, "Dear Paypal member", that's a dead giveaway that this is spam phishing.
Paypal is (as far as I can see, ) secure, I've used it for over 2 years with no hassles.