When you receive a communication (by email or SMS), there are several elements that you should check as they might indicate you are dealing with a fraud attempt:
Sender’s address or telephone number: they have unusual formats and do not match with the corporate emails or phone numbers you used to communicate previously with your service supplier.
The type of demand / request: such communications almost always contain an urgent demand such as to update your data or provide some information to continue accessing a service.
Links: most service providers will never send you a link by email or SMS asking to update your data.
Spelling: a large number of errors in the wording can be a sign of a fraud attempt.