Most of us continue to get many e-mail messages that end with things like 'Sent from my iPad' or 'Sent from my Samsung Galaxy S8'.and#160; These default 'signatures' on most mobile devices are designed to advertise for the manufacturer of your device without your input.and#160; They know that many of you won't bother to change the defaults and they end up with millions of free mini-ads.and#160; With the number of messages that we still see using these free mini-ads at the end, it's pretty obvious that this approach is working for them.and#160; Proclaiming that you've sent a message from your mobile device can in some cases be a minor security risk, so we should all take a minute and update our smartphones email messaging signature today.and#160; For business users, an updated signature is a great way to send contact info with every message and help recipients become aware of your company's blog, website or other important marketing tools.and#160; We have posted the links to provide step by step instructions for iPhone, Android and even Blackberry devices to stop you from being a pawn for smartphone companies.and#160; iOS and Android: https://www.pcworld.com/article/2052156/how-to-change-your-email-signature-on-your-smartphone.htmland#160; Blackberry: http://helpblog.blackberry.com/2013/07/blackberry-10-how-to-set-up-an-email-signatureand#160;