evidence: The best way to avoid hacks via texts and calls is not to answer numbers you don’t recognize. Don’t call them or text them back, and don’t click any links. You might be the victim of a call-back scam, and calling back may charge you at an international rate, with the hacker getting some or all of it. And watch out for social engineering tactics that fraudsters use to get you to click a malicious link. [...] One example of a zero-click attack was the WhatsApp missed call hack, in which spyware was installed on phones without users even needing to pick up a call. These types of hacks constitute major security breaches — enough to make the news. [...] Your phone can’t be hacked from your number alone, although there are some zero-click attacks that can install malware even if you don’t answer a call or click a text. Usually, to hack a phone, scammers need targets to take some action, like clicking a malicious link or downloading an infected app.