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Researchers at Yale Privacy Lab and French nonprofit Exodus Privacy have documented the proliferation of tracking software on smartphones, finding that weather, flashlight, rideshare, and dating apps, among others, are infested with dozens of different types of trackers collecting vast amounts of information to better target advertising. Exodus security researchers identified 44 trackers in more than 300 apps for Google’s Android smartphone operating system. The apps, collectively, have been downloaded billions of times. Yale Privacy Lab, within the university’s law school, is working to replicate the Exodus findings and has already released reports on 25 of the trackers. Yale Privacy Lab researchers have only been able to analyze Android apps, but believe many of the trackers also exist on iOS, since companies often distribute for both platforms. To find trackers, the Exodus researchers built a custom auditing platform for Android apps, which searched through the apps for digital “signatures” distilled from known trackers. A signature might be a tell-tale set of keywords or string of bytes found in an app file, or a mathematically-derived “hash” summary of the file itself. The findings underscore the pervasiveness of tracking despite a permissions system on Android that supposedly puts users in control of their own data. They also highlight how a large and varied set of firms are working to enable tracking.

Criminals in 2017 managed to get an advanced backdoor preinstalled on Android devices before they left the factories of manufacturers, Google researchers confirmed on Thursday. Triada first came to light in 2016 in articles published by Kaspersky here and here, the first of which said the malware was "one of the most advanced mobile Trojans" the security firm's analysts had ever encountered. Once installed, Triada's chief purpose was to install apps that could be used to send spam and display ads. It employed an impressive kit of tools, including rooting exploits that bypassed security protections built into Android and the means to modify the Android OS' all-powerful Zygote process. That meant the malware could directly tamper with every installed app. Triada also connected to no fewer than 17 command and control servers. In July 2017, security firm Dr. Web reported that its researchers had found Triada built into the firmware of several Android devices, including the Leagoo M5 Plus, Leagoo M8, Nomu S10, and Nomu S20. The attackers used the backdoor to surreptitiously download and install modules. Because the backdoor was embedded into one of the OS libraries and located in the system section, it couldn't be deleted using standard methods, the report said. On Thursday, Google confirmed the Dr. Web report, although it stopped short of naming the manufacturers. Thursday's report also said the supply chain attack was pulled off by one or more partners the manufacturers used in preparing the final firmware image used in the affected devices.

As soon as my article about how NSA computers can now turn phone conversations into searchable text came out on Tuesday, people started asking me: What should I do if I don’t want them doing that to mine? The solution, as it is to so many other outrageously invasive U.S. government tactics exposed by NSA whistleblower Edward Snowden, is, of course, Congressional legislation. I kid, I kid. No, the real solution is end-to-end encryption, preferably of the unbreakable kind. And as luck would have it, you can have exactly that on your mobile phone, for the price of zero dollars and zero cents.

The Intercept’s Micah Lee wrote about this in March, in an article titled: “You Should Really Consider Installing Signal, an Encrypted Messaging App for iPhone.” (Signal is for iPhone and iPads, and encrypts both voice and texts; RedPhone is the Android version of the voice product; TextSecure is the Android version of the text product.) As Lee explains, the open source software group known as Open Whisper Systems, which makes all three, is gaining a reputation for combining trustworthy encryption with ease of use and mobile convenience. Nobody – not your mobile provider, your ISP or the phone manufacturer — can promise you that your phone conversations won’t be intercepted in transit. That leaves end-to-end encryption – using a trustworthy app whose makers themselves literally cannot break the encryption — your best play.

Internet censors have a new strategy in their bid to block applications and websites: pressuring the large cloud providers that host them. These providers have concerns that are much broader than the targets of censorship efforts, so they have the choice of either standing up to the censors or capitulating in order to maximize their business. Today’s internet largely reflects the dominance of a handful of companies behind the cloud services, search engines and mobile platforms that underpin the technology landscape. This new centralization radically tips the balance between those who want to censor parts of the internet and those trying to evade censorship. When the profitable answer is for a software giant to acquiesce to censors' demands, how long can internet freedom last? The recent battle between the Russian government and the Telegram messaging app illustrates one way this might play out. Russia has been trying to block Telegram since April, when a Moscow court banned it after the company refused to give Russian authorities access to user messages. Telegram, which is widely used in Russia, works on both iPhone and Android, and there are Windows and Mac desktop versions available. The app offers optional end-to-end encryption, meaning that all messages are encrypted on the sender's phone and decrypted on the receiver's phone; no part of the network can eavesdrop on the messages. Since then, Telegram has been playing cat-and-mouse with the Russian telecom regulator Roskomnadzor by varying the IP address the app uses to communicate. Because Telegram isn't a fixed website, it doesn't need a fixed IP address. Telegram bought tens of thousands of IP addresses and has been quickly rotating through them, staying a step ahead of censors. Cleverly, this tactic is invisible to users. The app never sees the change, or the entire list of IP addresses, and the censor has no clear way to block them all. A week after the court ban, Roskomnadzor countered with an unprecedented move of its own: blocking 19 million IP addresses, many on Amazon Web Services and Google Cloud. The collateral damage was widespread: The action inadvertently broke many other web services that use those platforms, and Roskomnadzor scaled back after it became clear that its action had affected services critical for Russian business. Even so, the censor is still blocking millions of IP addresses.

One security start-up that had an encounter with the FBI was Wickr, a privacy-forward text messaging app for the iPhone with an Android version in private beta. Wickr's co-founder Nico Sell told CNET at Defcon, "Wickr has been approached by the FBI and asked for a backdoor. We said, 'No.'" The mistrust runs deep. "Even if [the NSA] stood up tomorrow and said that [they] have eliminated these programs," said Marlinspike, "How could we believe them? How can we believe that anything they say is true?" Where does security innovation go next? The immediate future of information security innovation most likely lies in software that provides an existing service but with heightened privacy protections, such as webmail that doesn't mine you for personal data.

Wickr's Sell thinks that her company has hit upon a privacy innovation that a few others are also doing, but many will soon follow: the company itself doesn't store user data. "[The FBI] would have to force us to build a new app. With the current app there's no way," she said, that they could incorporate backdoor access to Wickr users' texts or metadata. "Even if you trust the NSA 100 percent that they're going to use [your data] correctly," Sell said, "Do you trust that they're going to be able to keep it safe from hackers? What if somebody gets that database and posts it online?" To that end, she said, people will start seeing privacy innovation for services that don't currently provide it. Calling it "social networks 2.0," she said that social network competitors will arise that do a better job of protecting their customer's privacy and predicted that some that succeed will do so because of their emphasis on privacy. Abine's recent MaskMe browser add-on and mobile app for creating disposable e-mail addresses, phone numbers, and credit cards is another example of a service that doesn't have access to its own users' data.

Stamos predicted changes in services that companies with cloud storage offer, including offering customers the ability to store their data outside of the U.S. "If they want to stay competitive, they're going to have to," he said. But, he cautioned, "It's impossible to do a cloud-based ad supported service." Soghoian added, "The only way to keep a service running is to pay them money." This, he said, is going to give rise to a new wave of ad-free, privacy protective subscription services.