The UK is to trial a national emergency alerting system based on text messaging to your mobile phone.
Other countries have already done this, so it sounds uncontroversial - but can it be made to work safely and securely?
Hack not lest ye be hacked yourself, says researcher Josh Long. The "Facebook Hacking Site" actually leads hacker-wannabes into receiving premium SMS texts that jack up their phone bills and may also collect login details, he's found.
Mobile security researcher Karsten Nohl says he'll explain at the BlackHat conference how he can remotely "own" mobile phones with a single text message.
Paul Ducklin looks at what Nohl has said so far, and ponders how hard this might be to sort out...
UK researcher Jack Whitten found that a few easy back-and-forths with Facebook SMS updates on his mobile phone could let him reset passwords on others' accounts. Facebook gives him $20k for finding it. That deserves a 'Like'!
Twitter's new two factor authentication system will be welcomed by some users, but ignored by others who will find it a nuisance.
Notably, it's unlikely to be much use at all to media companies who have suffered at the hands of hackers, as Graham Cluley explains.
The UK information commissioner has for the first time used its shut-the-hell-up powers to quash the annoyance that is spam text messaging, having fined two men nearly half a million pounds. More such investigations are in the works, the ICO promised.
US pizza chain Papa John's is in the firing line of a class action lawsuit over SMS marketing.
The lawyers are saying that this could be one of the largest awards of its sort, at over $250 million - that's 658 Spicy Buffalo Wings for every SMS.
Do you have photographs on your smartphone that you don't want others to see? If an app publisher tells you that they will keep your secrets safe would you trust them?
Gary Hawkins takes a closer look at Android apps that promise to keep your photos private, and finds some lacking.
Last month, Naked Security uncovered evidence that Google was planning to starting scanning Android apps for malware on users' smartphones.
Google has now shared more information about the technology it plans to introduce to fight malware on mobile devices.
French police have arrested a 20-year-old man in Northern France, in connection with an attack that infected thousands of Android smartphones with money-making malware.
A Moscow-based firm has been ordered to refund victims who lost money as a result of Android malware.
Thousands of Android devices are thought to have been infected by a strain of Chinese malware which sends costly SMS messages to earn cash for its creators.
Always take care about clicking on links sent to you out of the blue, even if they arrive on your mobile phone.
Tempted to try out the much talked about Instagram app? Well, be careful where you get it from - as malware authors are distributing malware disguised as the popular app.
New Android malware seems to continue to roll off the criminal assembly lines, this time in China. Downloading an innocent game *can* get you into trouble.
Concerns are raised over the beta version of Firefox for Android, after it demands that users allow it to access your smartphone's ability to send and receive SMS messages.
Could such a permission be a security threat for the future?