Got this mail from Steam

[BLaaR]

This is an automated message generated by Steam account administration. It is being sent in response to a query made by a Steam user to discover all account names associated with this CD key.

Steam account name: xxx

If you requested this query, please use the above account name to log in to Steam. If you cannot remember your password, click on the “Retrieve lost account” button on the Steam login screen.

If you did not request this query, please ignore this message.

Users cannot gain access to your account via the Find Account By CD Key process without access to your email account.

The mail says I must ignore if I did not request the query, but to be on the safe side, what should I do ?

Edit: I have changed my Steam account password just in case.

 

[Ant_Shrew]

Get steam mobile app and use its authentication systwm

 

[rolanray]

I'm pretty sure someone tried using a key that you have already claimed.

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