WhatsApp has recently addressed a security vulnerability that allowed hackers to target specific Apple users with spyware. The company advised users to be vigilant for signs of hacking, such as unusual battery drain, increased data usage, slow performance, unfamiliar apps, and unexpected changes to settings. These indicators can help users recognize if their devices have been compromised. The collaborative efforts between WhatsApp and Apple in patching these vulnerabilities highlight the ongoing battle against cyber threats, emphasizing the importance of staying informed and proactive to protect personal data from malicious actors.