FDA Recalls Defective iOS App That Injured Over 200 Insulin Pump Users

Jess Weatherbed reports via The Verge: At least 224 people with diabetes have reported injuries linked to a defective iOS app that caused their insulin pumps to shut down prematurely, according to the US Food and Drug Administration (FDA). On Wednesday, the agency announced that California-based medical device manufacturer Tandem Diabetes Care has issued a recall for version 2.7 of the iOS t:connect mobile app, which is used in conjunction with the company’s t:slim X2 insulin pump. Specifically, the recall relates to a software issue that can cause the app to repeatedly crash and relaunch, resulting in the pump’s battery being drained by excessive Bluetooth communication.

This battery drain can cause the pump to shut down “earlier than typically expected” according to Tandem, though the pump will notify users of an imminent shutdown via an alarm and low-power alert. The company has notified customers to update the mobile app to version 2.7.1 or later, which should fix the defective software. While no physical recall is taking place, the FDA has identified this as a “Class I” recall — the most serious type, as it relates to issues with products that can potentially cause serious injuries or death. No deaths linked to the issues have been reported as of April 15th. Tandem is encouraging pump users to take particular care when they sleep as it’s easier to miss battery depletion warnings, and is asking impacted customers to confirm they have been notified of the recall via this online form. For any other questions or concerns about the insulin pump recall, customers should contact Tandem Diabetes Care directly.

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Tumblr iOS Revenue Increased 125% Since Launching Its Parody of Paid Verification

Tumblr’s parody of paid verification has already delivered the social network and blogging platform a 125% boost in iOS in-app purchase revenue since November, according to a new analysis of the app’s in-app consumer spending. TechCrunch reports: The company, now operated by WordPress.com owner Automattic following its 2019 acquisition, launched its response to Twitter’s paid verification hustle with the addition of its own purely cosmetic double blue checks — a sort of tongue-in-cheek rebuttal to the idea that subscription-based verification had any real value. As it turns out, at least some Tumblr users were willing to pay — though perhaps not for clout, but because in-jokes have proven to be a more successful monetization strategy for the blogging network than some of its more legitimate attempts to make money, such as its creator-focused subscription, Post+. After being met with community backlash, at one point Post+ was being outperformed from a monetization perspective by crabs — a goofy paid feature that let users send animated dancing crabs to each other’s dashboards.

According to new data from app intelligence firm Sensor Tower provided to TechCrunch, consumer spending on Tumblr’s iOS app increased since November 2022’s double-blue check launch, now totaling $263,000 in net revenue. While that’s not a significant figure in the grand scheme of things by any means, it still represents a 125% jump in spending compared with the prior three-month total of August through October 2022. When looking at more long-term trends, Tumblr’s revenue remains up — but not by as much. Sensor Tower says the in-app purchase revenue on iOS is up 19%, compared with the prior ten months ahead of the blue check’s launch (January through October 2022).

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Developer Uses iOS 16 Exploit To Change System Font Without Jailbreak

A developer managed to use an exploit found in iOS 16 to change the default font of the system without jailbreak. 9to5Mac reports: Zhuowei Zhang shared his project on Twitter, which he calls a “proof-of-concept app.” According to Zhang, the app he developed uses the CVE-2022-46689 exploit to overwrite the default iOS font, so that users can customize the system’s appearance with a different font other than the default (which is San Francisco). The CVE-2022-46689 exploit affects devices running iOS 16.1.2 or earlier versions of the operating system, and it basically lets apps execute arbitrary code with kernel privileges. The exploit was fixed with iOS 16.2, which also fixed a bunch of other security breaches found in the previous version of iOS.

Since iOS has its own font format, the developer performed the experiment using only a few fonts, including DejaVu Sans Condensed, Serif, Mono, and Choco Cooky. And in case you’re wondering, Choco Cooky is the weird font that used to come pre-installed by default on Samsung smartphones. Now you can finally have it on your iPhone. Zhang explains that the process should be safe for everyone, since all changes are reversed after rebooting the device. Still, the developer recommends users trying out the app to back up their devices before replacing the default system font. He also details that the change only affects some of the text on iOS, as other parts of the system use different fonts. More details about the project, including its source code, are available on GitHub.

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