As the Taiwanese CPBL has been active for about three weeks, you could find several posts with links to the games in the past weeks. I bumped into a Facebook post where it was mentioned that at least three CPBL teams are broadcasting games through their Twitter account.
Here are the links to the various Twitter accounts:
CTBC Brothers Elephants: https://twitter.com/CTBC_Brothers
Rakuten Monkeys: https://twitter.com/RakutenMonkeys
Fubon Guardians: https://twitter.com/FubonGuardians
As far as I can see, the Uni-President Lions do not have a Twitter account.
In this way, you can watch Taiwanese baseball in a safe way without the risk of attracting a computer virus.