Coinbase, one of the world’s most popular cryptocurrency exchanges, has apparently had a nasty bug lurking in its system that would allow users to collect unlimited ether through a few simple steps. Thanks to a bug report, however, the company avoided disaster.

A new wave of Bitcoin-mania surged through the internet this weekend—and with it, a new crop of sketchy opportunists. Bitcoin apps were very popular in the Apple app store, and one using the name of a completely unrelated cryptocurrency wallet service now holds the number three position in the finance category.

When a new Kickstarter launches for an everyday item with (Bluetooth/NFC/WiFi/solar panels/CNC'd aluminium unibody — delete as appropriate) capabilities on board, I'm normally first in the line of jeering sceptics. But a wallet with built-in Bluetooth actually makes a lot of sense. Pass the Kool-Aid, please.

Do you have a George Costanza-sized wallet? If you're like any red-blooded American, then you probably do, which means you probably also have back problems. We can't help you with damage you've already inflicted, but Capsule will help you ditch that bulge with its cleverly designed Minimalist collection wallet.

Samsung has just announced its new Wallet mobile payment app at the Mobile World Congress and... and it looks a hell of a lot like Apple's Passbook.

We've been hearing on and off that this might happen, but Android Police just got a pretty real-looking tip from a leaked build of the Google Wallet that seems to confirm it: Google Wallet is getting a physical credit card. But what does that actually mean?

Recently Apple announced Passbook, a new mobile wallet that will debut in iOS. Its existence prompted speculation that future iPhones will include NFC—and now 9to5mac is reporting that new iPhone prototypes feature the technology.

Sprint revealed at the Mobile World Congress that it's rolling out Google Wallet to 10 new phones in 2012, to complement the Nexus S 4G that it currently carries. There's no word on which handsets will benefit, but it's a big step forward in making the mobile payment system a widespread reality. [Fierce Mobile Content]

Google Wallet's no-hacking-required hack from last week has reportedly been resolved. Now the only person you can blame for being broke is yourself.

That's twice in two days. Yesterday, security firm Zvelo discovered a potential exploit against rooted phones. Today, tech blog TheSmartphoneChamp discovered how to accomplish the same feat on non-rooted phones.

The security PIN system that Google Wallet users have to enter to verify transactions has been compromised. Thankfully, the chances of your wallet being used against you is relatively low—assuming you haven't rooted your phone, that is.

The reason you buy a Nexus phone isn't just because it's the best Android phone. It's a pure distillation of everything Google has to offer. The best Android can possibly be at a given moment in time.

As NFC technology and mobile purchasing move into the mainstream, Google's separate online payment systems, Checkout and Wallet, have become redundant. One of them has got to go.

Google Wallet, the company's NFC solution that lets people use phones to make payments, is going on tour and offering people $10 just to try it out. It's cool, but don't get too crazy, the selection is pretty limited.

You don't have a Nexus S 4G, or Sprint or the Citi Mastercard required for Google Wallet. But that doesn't you mean you don't wanna live in the future, using your phone to pay for stuff. Here's how to do that right now, no matter what phone you've got.

"Whoa, how did you do that?" I didn't say anything when the clerk at Duane Reade—or was it Walgreen's?—asked me how to pay. I just smashed my phone into the PayPass terminal. Money poured out of my Nexus S, and into somebody's corporate coffers. Magic!

Even though it's unclear when Google Wallet will officially debut, Google decided to jump back to 1998 to give George a lesson in why wallets are a thing of the past. You can hear Larry Page's cruel laughter in the background.

"Your phone will be your wallet." That's what Google's promising with Google Wallet and Google Offers, which'll combine payments and deals in one neat package. And it's a pretty compelling little vision of the future of paying for stuff.

This certainly isn't the first folding credit card-sized knife we've seen—my friend and colleague Brian Barrett just came across an affordable $25 model recently—though this decidedly intimidating carbon fiber blade is the one I'd rather be carrying around in my pocket (Barrett stood by his cheap-o cutter; we're…