We were aware of the issue that caused the warning to be displayed, and it has been fixed. We have submitted a rescan request to Google which should mean the malware warning does not appear any more.
We apologise for any confusion or concern the warning has caused. After our Mobile Marketing Live hashtag was hijacked earlier this week, it's been an eye-opening few days as to the cr*p you have to put up with sometimes when you run an online business.
To be clear, there is no danger in accessing Mobile Marketing. The only danger, in fact, is that if you don’t, you’ll rapidly lose touch with this incredibly fast-moving business.