Hong Kong's embattled Chief Executive Carrie Lam Cheng Yuet-ngor has warned that doxxing is a threat to society and must be stopped, after her personal information was again published on social media.

In a Facebook post on Sunday, Lam noted the far-reaching impact of the practice of putting people's personal information in the public domain for malicious purposes, saying it was only ever done with the intention of silencing free speech.