Notification of Cybersecurity Attack

Sumitomo Mitsui Auto Leasing & Service (Thailand) Co., Ltd. (“SMAT”) clarifies the incident of a cybersecurity attack.

On 26 November 2021, SMAT discovered that SMAT had been a victim of cybersecurity attack. Upon such discovery, SMAT immediately took action to investigate and contain the event, with the assistance of our IT team as well as external vendors. Currently, SMAT is investigating, as a matter of urgency, to verify the compromised data and the affected customers as well as taking relevant measures to strengthen its IT system.

An initial investigation of the incident appeared to confirm that some internal data had been freezing. SMAT however, confirms that the incident did not have huge effect on SMAT’s operational system.

This incident will be reported to the Royal Thai Police for further investigation on the matter.

In addition to that, SMAT would like to caution the customers to be aware of any suspicious or unsolicited calls and/or emails, as the attacker may be claiming to be SMAT and attempt to gather personal data by deception (known as 'phishing'). SMAT will not be contacting any customers asking for credit card details and any such requests. In case of such event occurs, the customers should take legal actions.

The Customers who are affected from any such event, can contact SMAT via the following channel.


SMAT takes the protection of the customers’ data very seriously and SMAT is deeply sorry for any inconvenience that this malicious incident incurred.

Sumitomo Mitsui Auto Leasing & Service (Thailand) Co., Ltd.