I got a call from +65 8402 073? from a guy (sounds like Filipino accent) calling from Singtel. He said many people have been using my internet for illegal purposes and that he can try to help me check and remove these people from my internet. It sounded like a scam, so I immediately said I will get someone else to check and hang up the call. I called Singtel hotline to check, and the operator it was a scam and to share the encounter on this website.