Lenovo has admitted that it’s been shipping laptops and convertible laptop/tablet devices with a security vulnerability.

Between September and December last year, Windows-based laptops from Lenovo were loaded with software called Superfish. This ‘broke’ secure web pages, which meant that any fraudulent secure sites wouldn’t be detected.

UK virtual mobile network giffgaff’s attempts to target its humorous horror-themed video ads have fallen foul of the Advertising Standards Authority.

The ASA received a complaint about a giffgaff advertisement on YouTube, which began with a screaming woman being pursued by a man who appeared to be holding a chainsaw.

Vodafone has signed a 15-year agreement with outdoor advertising company JCDecaux to deploy ‘small cells’ on street furniture and billboards, which will improve network performance.

It’s a global deal that follows a successful pilot programme where Vodafone Netherlands installed over 160 small cells on bus shelters in Amsterdam.

We begin this week's podcast with updates on two topics we discussed last week: the potential purchase of a UK mobile network by BT - and the crowd-funded Jolla Tablet.

After that we talk about the GSMA's reaction to national roaming, the potential death of the landline, a new threat to Google, management changes and advertising for 4G data.

The Advertising Standards Authority has upheld complaints about a promotional message from UK virtual network Lycamobile.

A link on Lycamobile’s web site referred to “Unlimited Data, now with 4G”, while an advertisement on the site said “£15 per month ... unlimited data now with 4G”.