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Privacy-enhancing technologies cut risks but are no silver bullet, UK watchdog says

By Patricia Figueiredo and Sachiko Sakamaki ( September 22, 2025, 15:47 GMT | Insight) -- Privacy-enhancing technologies can be a mitigating factor in data protection fines, but they are no "silver bullet" and could be weakened by developments in computing, the UK's chief privacy regulator told an event in Tokyo. John Edwards urged companies to prioritize data minimization and warned that today’s anonymization through PETs may not hold tomorrow. Denise Wong, who leads the Singaporean privacy authority, said PETs remain prohibitively expensive for many smaller firms.Privacy-enhancing technologies, or PETs, can be seen as a mitigating factor in penalty decisions by the UK data protection regulator, but they are not a full solution and could be undermined by future computing advances, the watchdog’s chief has said....

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