Apple has issued new guidance to iPhone users to protect themselves after a recent cyberattack targeted over a billion devices. The company warned users about hackers using social engineering tactics, like posing as Apple representatives to steal personal details such as sign-in credentials and financial information. Users should watch out for phishing emails, fake promotions, and fraudulent calls that trick them into sharing sensitive information. To enhance security, iPhone owners are advised to activate two-factor authentication, requiring a password and verification code to access their accounts. Apple also warned about spoofing calls from scammers pretending to be legitimate representatives, urging users to be cautious and not share personal information. Scammers may try to create urgency by claiming unauthorized charges and pressuring users to act quickly. Apple emphasized the importance of verifying communication and avoiding suspicious links to prevent falling victim to these malicious attacks.