In my case, when I started using a VPN, I felt a significant increase in security, especially when connecting to public Wi-Fi networks. Data protection has become more reliable and I feel that my phone is better protected from possible threats. In addition, it is important to pay attention to your phone's privacy settings and not to forget about the physical protection of the device. In addition to VPNs, I also recommend installing anti-virus software and using two-factor authentication on important accounts. This will not only help protect your data, but also make it much harder for unauthorised people to access your phone. Remember that the best way to protect your phone is to combine several security measures that complement each other.