This week we talk about why Let's Encrypt might have to celebrate its billionth certificate twice, wonder if James Bond could hack Siri with ultrasound and make backups surprisingly interesting.

Host Mark Stockley is joined by Sophos experts Greg 'Fido' Iddon and Peter Mackenzie.

Related articles:

Let's Encrypt:

https://nakedsecurity.sophos.com/2020/03/02/lets-encrypt-issues-one-billionth-free-certificate/

https://nakedsecurity.sophos.com/2020/03/04/why-3-million-lets-encrypt-certificates-are-being-killed-off-today/

SurfingAttack:

https://nakedsecurity.sophos.com/2020/03/02/siri-and-google-assistant-hacked-in-new-ultrasonic-attack/

Ransomware in your backups

https://www.bleepingcomputer.com/news/security/ransomware-attackers-use-your-cloud-backups-against-you/