Two men have been arrested for scamming HK$2.82 million out of victims by offering gambling and Bitcoin investment tips.
They also claimed to be able to help people get licenses to drive into restricted areas on Lantau.
The two have committed at least 21 online scams involving 22 victims aged between 16 and 56. The worst case saw one defrauded of around HK$2.5 million in a Bitcoin scam.
The two suspects, aged 36 and 38, received the money through their personal bank accounts.
They sent fake social media posts claiming they would provide gambling tips used in Macau casinos to make a lot of money.
They also posted photos showing large amounts of cash and luxury cars, claiming it was possible to make HK$100,000 per month.
Officers also found they were selling fake one-year permits for HK$9,800 to enter restricted areas on Lantau for sightseeing.
Once victims transferred the money and submitted their personal information to the, they were then blackmailed using their personal data into paying amounts ranging from thousands to HK$80,000.
Senior inspector Lo Oi-kin said the transport department will only issue permits to local residents, merchants and persons with special needs on Lantau.