The messaging app WhatsApp, used by 1.5 billion people worldwide, has been targeted in an advanced cyber-attack, raising serious concerns over the privacy of electronic communications. The unknown hacker managed to install surveillance software into targets' phones, enabling messages on these devices to be read. The attacker's methods call into question the reliability of the security offered by end-to-end encrypting of messages.

The attack is a stark reminder of the importance for both individuals and companies of protecting information which is sent and received by technological means. It is of utmost importance that individuals wishing to protect their privacy, and corporates holding confidential information, ensure the methods by which they send information are secure.