To announce the Company's information

Subject: To Explain the Media Report

Date of events:2021/10/19

Contents:

1.Date of occurrence of the event:2021/10/19

2.Company name: Acer Inc.

3.Relationship with the Company (please enter "the company itself" or "subsidiaries"):the company itself

4.Reciprocal shareholding percentage: N/A

5.Name of the reporting media: Economic Daily News

6.Content of the report:

Acer confirms second hack within one week, emphasizes no customer data has been leaked in Taiwan.

7.Cause of occurrence:

We have recently detected an isolated attack on our local after-sales service system in India and a further attack in Taiwan. Upon detection, we immediately initiated our security protocols. The attacked Taiwan system does not involve customer data. The incident has been reported to local law enforcement and relevant authorities, has not caused interruption to our business continuity and has no material impact to our finance and operations.

8.Countermeasures: Appropriate countermeasures were taken.

9.Any other matters that need to be specified: None