PayPal security alert text

[Mand1001]

Hi I've had a text asking about an attempted log in from my account today and asked to reply 1 or 2 for yes or no. It wasn't me but I don't know if it's a genuine text, I've had texts from that number about transactions so it could be genuine but wanted to check. Thanks

[Jugzjones]

This is a text message from 725 795, is this legit? PayPal Security Alert: Did you sign into your account at 03:43 AM SAST, 23-Sep-2019? If yes, reply Y. If no, reply N. Msg & Data rates apply.