How Spies Stole the Keys to the Encryption Castle

As smartphones become more popular, they are increasingly replacing credit cards and cash as a means of paying for goods and services. However, governments, including the NSA and GCHQ, exploit vulnerabilities in mobile phone systems to conduct surveillance. One such vulnerability is the lack of Perfect Forward Secrecy (PFS) in cellphone communications, which allows intelligence agencies to decrypt previously intercepted communications using stolen encryption keys. To protect oneself from Ki theft-enabled surveillance, individuals should use secure communication software that uses Transport Layer Security (TLS).