Former IRAS Tax Investigator and a Director Charged for Alleged Offences under the Computer Misuse and Cybersecurity Act and the Official Secrets Act

On 22 July 2026, the following two individuals were charged in Court for alleged offences under the Computer Misuse and Cybersecurity Act (CMCA) and the Official Secrets Act (OSA):

a) Mansur @ Thio Shuang Long (“Mansur”) (49-year-old male Singaporean), a Principal Tax Investigator in the employ of Inland Revenue Authority of Singapore (“IRAS”) at the material time of the alleged offences; and

b) Loh Chee Wee (“Loh”) (卢志伟, 50-year-old male Singaporean), a Director of Transstar Asia Pte Ltd (“Transstar”) at the material time of the alleged offences.

2. Between May 2014 and January 2016, on multiple occasions, Mansur allegedly used his IRAS account to gain unauthorised access to IRAS’s computer systems to obtain tax information relating to individuals and companies. He allegedly did so in response to personal queries from his friends and acquaintances.

3. In one such instance on 29 July 2014, Loh allegedly requested Mansur to ascertain whether a company sharing the same office space with his company, Transstar, was under investigation by IRAS. Mansur allegedly obtained this information from IRAS’s systems and communicated it to Loh, who was not an authorised recipient of such information.

4. For his actions, Mansur faces 20 charges under Section 3(1) of the CMCA and one charge under Section 5(1)(e)(i) of the OSA, punishable under Section 17(2) of the said Act. Loh faces one charge under Section 5(2) of the OSA, punishable under Section 17(2) of the Act, for allegedly receiving information from Mansur.

5. Any person convicted of an offence punishable under Section 3(1) of the Computer Misuse and Cybersecurity Act can be fined up to S$5,000, or sentenced to imprisonment of up to two years, or both. Any person convicted of an offence punishable under Section 17(2) of the Official Secrets Act can be fined up to S$2,000 and sentenced to imprisonment of up to two years.

Corrupt Practices Investigation Bureau