|Initial release||May 26, 2011|
Google Wallet is a mobile payment system developed by Google that allows its users to store debit cards, credit cards, loyalty cards, and gift cards among other things, as well as redeeming sales promotions on their mobile phone. Google Wallet uses near field communication (NFC) to "make secure payments fast and convenient by simply tapping the phone on any PayPass-enabled terminal at checkout."
Google Wallet is currently available on the following devices:
- Samsung Nexus S 4G on Sprint
- Samsung Galaxy Nexus on Sprint
- Samsung Galaxy Nexus GSM/HSPA+
- Samsung Galaxy Victory 4G LTE on Sprint
- Samsung Galaxy SIII on Sprint, MetroPCS, and US Cellular
- Samsung Galaxy S4 on Sprint
- Samsung Galaxy Axiom on US Cellular
- LG Viper™ 4G LTE on Sprint
- LG Optimus Elite™ on Sprint and Virgin Mobile
- LG Nexus 4 GSM/HSPA+ (available for purchase on Google Play)
- HTC EVO 4G LTE on Sprint
- HTC One on Sprint
- Asus Nexus 7 (available for purchase on Google Play)
- Samsung Nexus 10 (available for purchase on Google Play)
At this time, Google Wallet does not support devices purchased outside the United States. The eligible device list above only applies to devices purchased from the listed carriers next to them. For example, an unlocked Samsung Galaxy SIII purchased internationally will not work with Google Wallet.
Google plans to produce NFC stickers associated with one credit card each, to be affixed to non-NFC-capable phones. Two methods for providing money to the service are advertised, Citi Mastercards and Google Prepaid Card, which can be loaded using any major credit card. During Google Wallet's unveiling at NYC headquarters, Google also touted the openness of their new system. Google said it will partner with all vendors of non-Android phones, including Apple, BlackBerry, and Microsoft.
On December 6, Verizon announced it is not blocking Google Wallet on its Galaxy Nexus phones, despite rumors: "Google Wallet does not simply access the operating system and basic hardware of our phones like thousands of other applications. Instead, to work as designed by Google, Google Wallet must be integrated into a new, secure and proprietary hardware element in our phones." said a Verizon rep. This was believed true because Verizon plans to roll out its own payment system, ISIS, in partnership with AT&T and T-Mobile in 2012. Supported phones include the (Sprint, Verizon and Play Store) Galaxy Nexus, LG Viper 4G LTE, LG Optimus Elite. The Sprint Galaxy S III and Nexus 7 also offer Google Wallet. Unofficially, it runs on all US variants of the Galaxy S III.
In order to expand Google Wallet's coverage across major mobile carrier networks and enable Wallet acceptance at more merchant locations, Google plans to introduce a physical card that will work in conjunction with Google Wallet. In doing so, Google follows the lead of PayPal and various payment startups, including Wallaby Financial, Protean Payment, and iCache International. 
On August 1st, 2012, Google Wallet expanded support to all major credit and debit cards including Visa, MasterCard, American Express, and Discover. American Express later said that they never agreed to participate in the Google Wallet program. 
Google Wallet launch partners include Citi as the issuing bank, MasterCard as the initial payment network, and Sprint as the first mobile carrier. Merchants who accept Google Wallet include: American Eagle Outfitters, Bloomingdales, Foot Locker, Jamba Juice, Macy's, RadioShack, Subway, The Container Store, Toys "R" Us, and Walgreens.
In addition, Google Wallet works at other participating MasterCard PayPass merchants including 7-Eleven, BP, CVS Pharmacy, Dairy Queen, McDonald's, Office Max, Petco, Sports Authority, Sunoco, The Home Depot, Tim Hortons and other retailers.
NJ Transit also participates with Paypass and Google Wallet.
Business model 
Google doesn't currently charge users or merchants for access to Wallet, and plans to make money by offering sponsored ads to their users. The new app Google Shopper will push two types of offers to a user's phone:
- Today's offers, which allows the user to see a single offer redeemable for discounted goods or services in their area.
- Nearby offers, which allows the user to see a list of offers in the 'Eat' and 'Play' categories that nearby businesses have submitted through Google Places.
The Google Wallet was designed as an open platform. Payment networks, carriers, and banks have been invited to join and participate in the system.
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- Google Wallet stores encrypted user information on a computer chip called the Secure Element.
- The Android device itself can be locked with a personal identification number (PIN).
- The Google Wallet app requires an additional PIN to activate the antenna of NFC chip.
- The Google Wallet device must touch or be in close proximity to a MasterCard PayPass reader.
- Once the transaction is completed, the antenna is turned off. Additional transactions require the PIN to be entered again.
The Secure Element only stores data and is required to open the Google Wallet app. The Secure Element memory is separate from the device memory. The chip is designed to only allow trusted programs on the Secure Element itself to access the payment credentials stored therein. The secure encryption technology of the credit card issuing institution protects your payment card credentials as they are transferred from the phone to the reader.
An analysis by security company viaForensics revealed that some card information stored by Google Wallet is still accessible outside of the application. It is suggested that hackers could create a way to intercept data by eavesdropping on Google Analytics, which monitors apps used on the Android OS. A previous analysis by the same firm revealed a number of other exploits that have since been fixed.
PayPal lawsuit 
Shortly after launch, PayPal filed a lawsuit against Google and two former employees of PayPal – Osama Bedier and Stephanie Tilenius. The complaint alleges “misappropriation of trade secrets” and “breach of fiduciary duty.” The lawsuit reveals that Google was negotiating with PayPal for two years to power payments on mobile devices. But just as the deal was about to be signed, Google backed off and instead hired the PayPal executive negotiating the deal, Bedier. The lawsuit notes that Bedier knew all of PayPal’s future plans for mobile payments, as well as an internal detailed analysis of Google’s weaknesses in the area. Not only that, it accuses him of storing “confidential information in locations such as his non-PayPal computers, non-PayPal e-mail account, and an account on the remote computing service called ‘Dropbox.’”
Google has run a competitor to PayPal, Google Checkout, since 2006, which was replaced with Google Wallet.
See also 
- "Coming soon: make your phone your wallet". Official Google Blog. May 26, 2011. Retrieved May 26, 2011.
- Warren, Christina (May 26, 2011). "Google Reveals Mobile Payment System: Google Wallet". Mashable. Retrieved May 26, 2011.
- "This Day in Tech: Google Wallet launches". CNet.com. September 19, 2011. Retrieved September 19, 2011.
- Hamburger, Ellis (May 26, 2011). "Google Introduces Google Wallet, Works At Over 300,000 MasterCard PayPass Merchant Locations". Silicon Alley Insider. Retrieved May 26, 2011.
- Leavitt, Lydia (September 20, 2011). "Polyamorous Google Wallet adds Visa to its arsenal". Engadget.com. Retrieved September 20, 2011.
- "Attach Real Money in Gmail with Google Wallet". W3Reports. Retrieved 15 May 2013.
- Vildosola, Alberto (May 26, 2011). "Google plans to make special Google Wallet stickers for phones without NFC". Androidandme. Retrieved May 26, 2011.
- Castro, Radford (May 26, 2011). "Google Wallet to work with non-Android phones". LazyTechGuys. Retrieved May 26, 2011.
- "Statement From Verizon On Google Wallet". News.verizonwireless.com. December 6, 2011. Retrieved December 9, 2012.
- Smith, Jake (Dec 5, 2011). "Verizon is blocking Google Wallet on Galaxy Nexus". 9TO5Google. Retrieved Dec 6, 2011.
- "Google Wallet Google+ post". Google. April 25, 2012. Retrieved April 25, 2012.
- "Sprint Galaxy S III arrives with Google Wallet on June 21 post". Engadget. June 4, 2012. Retrieved June 4, 2012.
- "Google wallet fix for SGS3 US variants VERIZON, AT&T, T-MOBILE, US Cellular, etc". XDA Developer. July 30, 2012. Retrieved July 30, 2012.
- "Google Has a Card up its Sleeve". Protean Payment. November 5, 2012. Retrieved November 5, 2012.
- "PayPal Partners With Discover To Bring In-Store Payments Platform To 7M Merchants In 2013". TechCrunch. August 22, 2012. Retrieved November 5, 2012.
- "Putting Money into the Mobile Wallet". admonsters. October 31, 2012. Retrieved November 5, 2012.
- Cain, Claire (August 1, 2012). "Google Wallet Now Works With Multiple Credit Cards". Bits.blogs.nytimes.com. Retrieved December 9, 2012.
- Mlot, Stephanie (August 3, 2012). "American Express Denies Signing on for Google Wallet Expansion". PCMag.com. Retrieved December 9, 2012.
- "Google Wallet: Security". Google. Retrieved June 22, 2011.
- "Google Wallet: Where it works". Google. Retrieved June 22, 2011.
- "Google Shopper". Google.com. Retrieved December 9, 2012.
- "Google Unveils Wallet And Offers: An Open Platform For Mobile Payments". TechCrunch. May 26th, 2011. Retrieved December 9, 2012.
- Le, Tony (June 1, 2011). "Google Wallet FAQ". GFan. Retrieved June 4, 2011.
- "Engadget Primed: What is NFC, and why do we care?". Engadget. Retrieved June 22, 2011.
- "Google Wallet: Security". Google. Retrieved June 22, 2011.
- "MasterCard PayPass". MasterCard. Retrieved June 22, 2011.
- Kevin Fogarty, Even after rewrites, Google Wallet retains gaping security holes, mainly due to Android, itworld, February 10, 2012.
- Schonfeld, Erick (May 26, 2011). "PayPal Lawsuit Against Google Reveals Recruiting Saga And A Deal Gone Sour". TechCrunch. Retrieved May 27, 2011.
- "Google Wallet: Privacy". Google. Retrieved September 20, 2011.
- Harley Geiger, NFC Phones Raise Opportunities, Privacy and Security Issues, Center for Democracy and Technology, April 11, 2011.