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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.

Security experts call it a “drive-by download”: a hacker infiltrates a high-traffic website and then subverts it to deliver malware to every single visitor. It’s one of the most powerful tools in the black hat arsenal, capable of delivering thousands of fresh victims into a hackers’ clutches within minutes. Now the technique is being adopted by a different kind of a hacker—the kind with a badge. For the last two years, the FBI has been quietly experimenting with drive-by hacks as a solution to one of law enforcement’s knottiest Internet problems: how to identify and prosecute users of criminal websites hiding behind the powerful Tor anonymity system. The approach has borne fruit—over a dozen alleged users of Tor-based child porn sites are now headed for trial as a result. But it’s also engendering controversy, with charges that the Justice Department has glossed over the bulk-hacking technique when describing it to judges, while concealing its use from defendants. Critics also worry about mission creep, the weakening of a technology relied on by human rights workers and activists, and the potential for innocent parties to wind up infected with government malware because they visited the wrong website. “This is such a big leap, there should have been congressional hearings about this,” says ACLU technologist Chris Soghoian, an expert on law enforcement’s use of hacking tools. “If Congress decides this is a technique that’s perfectly appropriate, maybe that’s OK. But let’s have an informed debate about it.”

The FBI’s use of malware is not new. The bureau calls the method an NIT, for “network investigative technique,” and the FBI has been using it since at least 2002 in cases ranging from computer hacking to bomb threats, child porn to extortion. Depending on the deployment, an NIT can be a bulky full-featured backdoor program that gives the government access to your files, location, web history and webcam for a month at a time, or a slim, fleeting wisp of code that sends the FBI your computer’s name and address, and then evaporates. What’s changed is the way the FBI uses its malware capability, deploying it as a driftnet instead of a fishing line. And the shift is a direct response to Tor, the powerful anonymity system endorsed by Edward Snowden and the State Department alike.

Last month, at the request of the Department of Justice, the Courts approved changes to the obscure Rule 41 of the Federal Rules of Criminal Procedure, which governs search and seizure. By the nature of this obscure bureaucratic process, these rules become law unless Congress rejects the changes before December 1, 2016.Today I, along with my colleagues Senators Paul from Kentucky, Baldwin from Wisconsin, and Daines and Tester from Montana, am introducing the Stopping Mass Hacking (SMH) Act (bill, summary), a bill to protect millions of law-abiding Americans from a massive expansion of government hacking and surveillance. Join the conversation with #SMHact.

For law enforcement to conduct a remote electronic search, they generally need to plant malware in — i.e. hack — a device. These rule changes will allow the government to search millions of computers with the warrant of a single judge. To me, that’s clearly a policy change that’s outside the scope of an “administrative change,” and it is something that Congress should consider. An agency with the record of the Justice Department shouldn’t be able to wave its arms and grant itself entirely new powers.

These changes say that if law enforcement doesn’t know where an electronic device is located, a magistrate judge will now have the the authority to issue a warrant to remotely search the device, anywhere in the world. While it may be appropriate to address the issue of allowing a remote electronic search for a device at an unknown location, Congress needs to consider what protections must be in place to protect Americans’ digital security and privacy. This is a new and uncertain area of law, so there needs to be full and careful debate. The ACLU has a thorough discussion of the Fourth Amendment ramifications and the technological questions at issue with these kinds of searches.The second part of the change to Rule 41 would give a magistrate judge the authority to issue a single warrant that would authorize the search of an unlimited number — potentially thousands or millions — of devices, located anywhere in the world. These changes would dramatically expand the government’s hacking and surveillance authority. The American public should understand that these changes won’t just affect criminals: computer security experts and civil liberties advocates say the amendments would also dramatically expand the government’s ability to hack the electronic devices of law-abiding Americans if their devices were affected by a computer attack. Devices will be subject to search if their owners were victims of a botnet attack — so the government will be treating victims of hacking the same way they treat the perpetrators.