In case you feel any one of the below you can definitely go ahead and cross-check if the threat actors have hacked your phone. The reason being limited data, forgetfulness, or carelessness. Whatever be the reason, if the security patches are not installed, those apps and the OS makes the phone vulnerable to hacking and data breaches. If you have to connect, use a premium VPN that would help you stay safe. ☛ Lock Your Smartphone When Not In Use: Some of us often forget to lock our phones and some others do not keep a password for their phone. The more apps that get access to your phone number, the more vulnerable you fall to the SMS scams.