Yes, it's possible for someone to hack WhatsApp accounts, although it's not easy and usually requires some specific tactics or vulnerabilities. Here are some methods that can be used:
1. **SIM Card Swapping**: An attacker can potentially convince your mobile carrier to transfer your phone number to a new SIM card, allowing them to receive your messages and verification codes.
2. **Spyware**: Malicious software can be installed on your device


