  Integrated sensing and communication (ISAC) technology is one of the
featuring technologies of the next-generation communication systems. When
sensing capability becomes ubiquitous, more information can be collected, which
can facilitate many applications in intelligent transportation, unmanned aerial
vehicle (UAV) surveillance and healthcare. However, it also faces many
information privacy leakage and security issues. This article highlights the
potential threats to privacy and security and the technical challenges to
realizing private and secure ISAC. Three promising combating solutions
including artificial intelligence (AI)-enabled schemes, friendly jamming and
reconfigurable intelligent surface (RIS)-assisted design are provided to
maintain user privacy and ensure information security. Case studies demonstrate
their effectiveness.
