Face recognition technology has gradually penetrated into the trend of social life, and many people have even made face recognition universal. In fact, there may still be risks and loopholes behind high-tech applications. Although according to conventional views, the higher the technological content, the more its The safety factor is also usually higher, but as shown in the 3.15 party, with the development of science and technology, high-tech means such as simulation hoods, holographic projection, and face tracking continue to appear, and single face recognition technology has great potential. Limitations, there is no absolute security concept to say. Therefore, when using high-level security scenarios involving privacy, payment, etc. , pay attention to merging human faces with voiceprints, fingerprints, irises and other biometric authentication signals, not a single With face recognition technology, the coefficient of security will be greatly improved. The text is intended to explain:. ['Face recognition technology has become a social trend.', 'Face recognition technology has great limitations.', 'There will also be problems behind high-tech products.', 'Multiple authentication methods help improve the safety factor.']