Fraud call or O2 Retention

[SimonAd]

Hi

I keep getting calls that claim to be from the O2 Retentions department (020 8077 6892). They are offering 40% of my bill, and I naturally assume calls like this are fraud. However they were able to send text messages with a code from the O2 number.

Have your systems been hacked by any chance?

[MI5 · Accepted solution]

@SimonAd 

It's a well known scam and they have access to your MyO2, so you need to change your password and check your details haven't been altered.

O2 advice here https://www.o2.co.uk/help/safety-and-security/phishing-and-smishing-advice
https://www.actionfraud.police.uk/