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Today's Tech: Samsung Galaxy S4 details surface, lax mobile security costing users dear, Matias Duarte to make or break Android?

As the week starts to wind down, the mobile world is fully gripped by Galaxy S4 fever, and today new screenshots purporting to depict the forthcoming Samsung Galaxy S4 in action surfaced (opens in new tab). What's more, they actually look like they could be the real deal - unlike the Galaxy S3 images that bogusly posed as S4 photos and made some sleepier news sites look very foolish indeed. However, the screenshots just picked up appear slightly more believable, though as ever it's worth approaching such images with a healthy amount of scepticism. In addition to a couple of general UI shots, the latest photo leak appears to confirm the Samsung Galaxy S4's key specifications, so follow the link to see what's in store next week.

At the beginning of the week, a security bug was uncovered in the Samsung Galaxy Note 2, allowing users to bypass the lock screen, access the applications beyond, and potentially nab sensitive data stored on the device. We suspected the flaw lay in the Android 4.1.2 OS being run by most Galaxy Note 2s, but with the same problem now being discovered in the Samsung Galaxy S3 (opens in new tab), the issue appears to lie within Samsung’s own software overlay. Has your Samsung device been plagued by lock screen security issues? Read on for the full story and be sure to share your experiences in the article's comment section.

More from the world of mobile security hit our column inches today, as a study from security firm McAfee revealed how lax UK users are when it comes to protecting their smartphones and tablets with passcodes (opens in new tab), with millions running the risk of having data stolen and racking up costly bills. The survey found that many users readily share PINs and password with their family members, which may sound pretty harmless, but in one recent incident it cost an iPad owner a £1,700 bill as his 5-year-old son ran riot in the iTunes app store. Follow the link for more on that particular tale, and what else the McAfee study brought to light.

After jumping ship from HP to Google in 2010, WebOS creator Matias Duarte took over as one of the most important forces behind Android. He shaped the operating system into what it is today, catapulting Android to the front of the mobile platform sector with nearly three-quarters of the market share. But how will his vision impact the future of the operating system? Gordon Kelly explores Duarte's history as a designer, the evolution of Android under his guidance, and the disparate scenarios that could be in store for Google as it continues to forge ahead with the operating system. Read on for an intriguing look into whether Duarte is "the man to make or break Android." (opens in new tab)

Will began working life as a technology journalist at ITProPortal as Senior Staff Writer. He's worked as a Copywriter, then Creative Lead across video, social, email, web and print. He is currently a Senior Content Strategist at Zone.