[pt]

From https://github.com/google/private-join-and-compute:

"Our protocol has security against honest-but-curious adversaries. This means that as long as both participants follow the protocol honestly, neither will learn more than the size of the intersection and the intersection-sum. However, if a participant deviates from the protocol, it is possible they could learn more than the prescribed information."

Also: "Disclaimers: This is not an officially supported Google product. The software is provided as-is without any guarantees or warranties, express or implied."