In addition to missile threats, Taiwan has also been the target of an unusually large volume of cyberattacks since the visit of Speaker Pelosi. The targets of the cyberattacks include the official webpages of the Presidential Office, the Ministry of Foreign Affairs, and the Ministry of National Defense, all of which have went offline temporarily due to the attacks. Even at a local level, a website under Kaohsiung’s Environmental Protection Bureau was hacked to display China’s national flag. Meanwhile, the National Police Agency’s online services were paralyzed for almost two hours.

Chinese hacker group APT 27 has claimed authorship for some of the attacks, releasing a video on social media declaring cyberwarfare on Taiwan government websites and infrastructure. Some Chinese internet users say that other groups that could be taking part in the attacks include members of a nationalist Chinese hacker group known as the "Honker Union."