Skip to main content
  1. Home
  2. Mobile
  3. Legacy Archives

Square gets backing from Visa…and adds encryption

Add as a preferred source on Google
Square credit card reader (iPhone)
Image used with permission by copyright holder

San Francisco startup Square which makes tiny card readers for smartphones that enable virtually anyone to process credit card transactions, has received an undisclosed strategic investment from Visa. Visa is the top credit card company on the planet: Visa’s investment in Square amounts to an endorsement of Square’s technology and ideas, which were recently very publicly challenged by Verifone for suffering from a fundamental security flaw.

Launched by Twitter co-founder Jack Dorsey in 2009, last year Square began offering free credit card readers to merchants and individuals on very simple 2.75 percent terms, with no merchant account or other complicated banking setup required to process credit card transactions. The Square reader pops into an Android or iOS smartphone via an audio port, and Square’s application software processes the rest of the transaction. Square has signed up hundreds of thousands of individuals and businesses, and the technology is widely seen as disruptive to the broader credit card industry, which thrives on processing fees to merchants and selling expensive point-of-sale card readers for processing transactions.

Recommended Videos

Few were surprised when credit card processor VeriFone came out against Square, but the public and aggressive nature of the attack were almost unprecedented, claiming that any programmer could make an app that skimmed consumer’s credit card information. At the heart of Verifone’s complaint was that the Square reader sends creditor card data to the smartphone in an unencrypted format, making it ripe for plucking by other applications.

Square’s Jack Dorsey responded that all the information anyone needs to “skim” a card is printed on the card itself, and any technology—including paper and pen—can be used to obtain that information, and noted that partner bank JPMorgan Chase didn’t have any problem with Square’s technology.

Nonetheless, now that Visa has made an unspecified investment in Square, the company plans to add encryption to its card readers. Square COO characterizes adding encryption to the card reader not as a capitulation to Verifone, but as an adoption of best practices.

“Square complies with all current industry standards, and we are committed to meeting or exceeding industry guidelines as they evolve — all while keeping our card reader free,” Rabois wrote.

Jack Dorsey recently returned to Twitter as executive chairman; he continues to serve as CEO of Square.

Geoff Duncan
Former Contributor
Geoff Duncan writes, programs, edits, plays music, and delights in making software misbehave. He's probably the only member…
The best funny and useful Siri commands for iOS and macOS
Siri Ai on iPhone

There was a time when Siri was the best voice assistant. Then it lost its crown to the likes of Google Assistant and Alexa. Now, with the rise of AI assistants like Google Gemini and ChatGPT Voice, the competition has become even more fierce. 

Thankfully, after letting Siri stagnate for years, Apple has finally given it the attention it deserved. And while there's still a long way to go, I cannot deny that I am enjoying using this new Siri, and it has become more useful in my daily life than ever before. 

Read more
The best note-taking apps for iOS and Android
I tested these apps for months so your notes never have to switch homes again.
iPhone showing note-taking apps

Choosing a note-taking app is not easy. What note-taking app you choose depends on your needs, the platform you use, and of course, the cost. The process becomes even more complicated as it seems that there’s a new shiny app released every other week. 

That’s why I always suggest choosing a note-taking app that has all the features you need and can last you for a long time. Also, don’t chase new apps. The real power of a note-taking app comes when all your notes live in one place, making it easy to spot connections between them.

Read more
The best phones in 2026: our 14 favorite smartphones right now
We tested phones across all price brackets so that you can make the best pick based on your needs and budget.
Google Pixel 10 Pro Fold vs Galaxy Z Fold 7 cameras

Choosing the right smartphone in 2026 is no easy task. Apple and Android manufacturers now have strong options at almost every price, while better cameras, longer battery life, improved software support, new AI features, and more refined foldable designs have made the market more competitive than ever. But picking one is not easy, especially if your budget is tight, or you are just legitimately concerned about getting the best value for your money and need a reliable daily driver for long-term usage.

We have tested and compared the leading smartphones available today, looking beyond the spec sheet to see how they actually perform in daily use. Camera quality, battery life, performance, display quality, software, design, and long-term value all play a part in our recommendations. Whether you are looking for a powerful flagship, a dependable budget phone, a compact device, or a foldable, this guide should help narrow down your choices.

Read more