Yahoo Adapted Email-Scanning Spam Filter to Satisfy 'Secret Court Order' Related to Terrorist Hunt

Following a report yesterday that cited three former Yahoo employees who claimed the company built a program to scan every customer's email for specific information at the order of the United States government, new pieces of information have surfaced in a separate article from The New York Times. Specifically, anonymous sources close to the matter said that Yahoo built the program by adapting a filter meant to scan email inboxes for child pornography, malware, and basic spam content.

Yahoo was said to have done this in order to "satisfy a secret court order," created to require the company to search for content containing a specific computer signature related to online communications of an unspecified state-sponsored terrorist group. Two of the anonymous sources -- referred to as "government officials" -- mentioned the Justice Department received the order from a judge of the Foreign Intelligence Surveillance Court sometime last year, an order that Yahoo was "barred from disclosing" to the public.

yahoo
Through its modifications to the spam filter program, Yahoo complied with the Justice Department's order and made available any email that contained the signature, but as of now that collection method "is no longer taking place." The order was described as "unusual" because it required the scanning of individual emails instead of user accounts as a whole, and was allegedly only given to Yahoo as other tech companies, including Apple, have said they never encountered such a demand.

In response to a request for comment, an Apple spokesperson told BuzzFeed News, “We have never received a request of this type. If we were to receive one, we would oppose it in court.”

A Microsoft spokesperson said, “We have never engaged in the secret scanning of email traffic like what has been reported today about Yahoo.”

A Google spokesperson told BuzzFeed News, “We’ve never received such a request, but if we did, our response would be simple: no way.”

According to the sources, federal investigators learned last year that members of a foreign terrorist organization were communicating using Yahoo's email service, through a method that used a "highly unique" designator, or signature, in each communication. Although built to look for specific content, the modified program's far-reaching scanning of each user on the service brought about unrest in the user base when the original report came out yesterday. Yahoo's compliance is also being contrasted to Apple's obstinate response in its battle with the FBI earlier in the year.

After the news broke, Yahoo said that the Reuters story was "misleading" and that the email scanning outlined in the report "does not exist on our systems." Compounding the company's woes, last month Yahoo confirmed that "at least" 500 million user accounts were compromised during an attack in late 2014, leaking customer information like names, email addresses, telephone numbers, birthdates, hashed passwords, and both encrypted and unencrypted security questions and answers. In the midst of all of this, Yahoo’s pending acquisition by Verizon could potentially face negative effects.

Note: Due to the political nature of the discussion regarding this topic, the discussion thread is located in our Politics, Religion, Social Issues forum. All forum members and site visitors are welcome to read and follow the thread, but posting is limited to forum members with at least 100 posts.

Tag: Yahoo

Popular Stories

ios 26 1 slide to stop

iOS 26.1 Brings Back 2007 Feature in New Way

Friday October 31, 2025 1:40 pm PDT by
The upcoming iOS 26.1 update includes a small but helpful change for iPhones, and it could prevent you from running late to something important. Specifically, when an alarm goes off in the Clock app, there is a new "slide to stop" control on the screen for turning off the alarm. On previous iOS 26 versions, there is simply a large "stop" button, which could be accidentally tapped. The new ...
M5 MacBook Pro

Waiting for New Macs? Apple Just Shared Bad News

Friday October 31, 2025 7:32 am PDT by
Apple has just given a strong indication that it will not be releasing any additional new Macs for the remainder of the year. Apple's CFO Kevan Parekh dropped the hint during the company's earnings call on Thursday:On Mac, keep in mind, we expect to face a very difficult compare against the M4 MacBook Pro, Mac mini, and iMac launches in the year-ago quarter.Parekh essentially gave a heads up ...
iPhone 17 Pro Cosmic Orange

8 Reasons to Wait for Next Year's iPhone 18 Pro

Thursday October 30, 2025 4:42 am PDT by
Apple's iPhone development roadmap runs several years into the future and the company is continually working with suppliers on several successive iPhone models at the same time, which is why we often get rumored features months ahead of launch. The iPhone 18 series is no different, and we already have a good idea of what to expect for the iPhone 18 Pro and iPhone 18 Pro Max. One thing worth...
iOS 26

6 New Things Your iPhone Can Do in iOS 26.1

Wednesday October 29, 2025 4:22 am PDT by
Apple is about to drop iOS 26.1, the first major point release since iOS 26 was rolled out in September, and there are at least six notable changes and improvements to look forward to. We've rounded them up below. Apple has already provided developers and public beta testers with the release candidate version of iOS 26.1, which means Apple will likely roll out the update to all compatible...
Coffee Burgundy and Purple iPhone 18 Pro Mock 1

Leaker Outlines Potential New Colors for iPhone 18 Pro

Friday October 31, 2025 8:28 am PDT by
Apple's iPhone 18 Pro models could be available in new rich and warm color option, according to a known leaker. The Weibo user known as "Instant Digital" today suggested that next-year's iPhone 18 Pro models will be available in at least one of the following color options: Coffee, purple, and burgundy. The iPhone XR, iPhone 11, iPhone 12, iPhone 14, and iPhone 14 Pro were all available in ...
Apple Foldable Thumb

iPhone Fold: Launch, Pricing, and What to Expect From Apple's Foldable

Friday October 31, 2025 8:52 am PDT by
Apple is expected to launch a new foldable iPhone next year, based on multiple rumors and credible sources. The long-awaited device has been rumored for years now, but signs increasingly suggest that 2026 could indeed be the year that Apple releases its first foldable device. Below, we've collated an updated set of key details that have been leaked about Apple's foldable iPhone so far. Ove...
apple tv hd

Apple Launched Its Big New Vision for TV 10 Years Ago Today

Thursday October 30, 2025 8:58 am PDT by
Apple launched the Apple TV HD, the Siri Remote, tvOS, and their accompanying App Store a decade ago today, marking a major overhaul of the device. The new vision for the Apple TV was unveiled on September 9, 2015 during Apple's "Hey Siri" event in San Francisco, where CEO Tim Cook introduced the device with the statement, "The future of TV is apps." The announcement represented a major...
iOS 26

Apple This November: iOS 26.2 Beta, Rumored New Products, and More

Thursday October 30, 2025 12:42 pm PDT by
Tomorrow is Halloween, and then November is upon us. Below, we outline what to expect from Apple next month, as the slower holiday season approaches. Apple is expected to kick off November by releasing iOS 26.1, iPadOS 26.1, macOS 26.1, watchOS 26.1, tvOS 26.1, and visionOS 26.1. With beta testing now wrapped up, the updates will likely be released this Monday, November 3 or Tuesday,...
iOS 18 Siri Personal Context

Apple CEO Tim Cook Says Revamped Siri on Track to Launch Next Year

Thursday October 30, 2025 1:50 pm PDT by
Apple CEO Tim Cook today said that a more personalized version of Siri remains on track to launch at some point next year, with the new set of features expected to debut on the iPhone as part of iOS 26.4 in March or April. "We're also excited for a more personalized Siri," said Cook, on Apple's earnings call for the third quarter of the 2025 calendar year. "We're making good progress on it,...
iOS 26

iOS 26.1 Coming Soon: New Features for Your iPhone and Release Date

Monday October 27, 2025 7:55 am PDT by
The upcoming iOS 26.1 update includes a handful of new features and changes for iPhones, including a toggle for changing the appearance of the Liquid Glass design, "slide to stop" for alarms in the Clock app, and more. Below, we outline key details about iOS 26.1. Release Date Given that Apple has yet to seed an iOS 26.1 Release Candidate, which is typically the final beta version, the...

Top Rated Comments

Sedulous Avatar
118 months ago
If the supposed filter works as well as Yahoo's spam filter then the terrorists have nothing to worry about.
Score: 14 Votes (Like | Disagree)
CrickettGrrrl Avatar
118 months ago
I have a hard time believing the efficacy of this secret email filter, as Yahoo has been notoriously bad at filtering malware & spam. :rolleyes: It must have been super porous.

I also have a hard time believing anybody who has their life or super secret plans on the line would even think of using Yahoo email in the first place. So wouldn't it be a really stupid terrorist gang?
Score: 10 Votes (Like | Disagree)
keysofanxiety Avatar
118 months ago
It goes from bad to worse. Both hacked and spying government shills.

It's over, Yahoo!
Score: 8 Votes (Like | Disagree)
ptb42 Avatar
118 months ago
It's unlikely they just scanned "inboxes". That could have been accomplished by scanning incoming mail with a network sniffer, and Yahoo's cooperation wasn't needed for that.

This was most likely to look in folders OTHER than the inbox, particularly the Drafts folder.

A well-known circumvention of incoming email sniffing is to use the same account: composing a message and saving it in the Drafts folder. The recipient logs into the same account and reads the draft message, replying to it or deleting it.
Score: 7 Votes (Like | Disagree)
840quadra Avatar
118 months ago
I have a hard time believing that the government hasn't approached Google, or Microsoft with such questions. I could see them not asking Apple, simply due to their overall lack of marketshare.
Score: 5 Votes (Like | Disagree)
69Mustang Avatar
118 months ago
I have a hard time believing that the government hasn't approached Google, or Microsoft with such questions. I could see them not asking Apple, simply due to their overall lack of marketshare.
I don't understand the logic you're using. I hope you're not conflating phone marketshare with email client marketshare. There are several metrics showing the iPhone email client is the largest by a wide margin. To be fair, that could be a focus on mobile. To be even more fair, I didn't dig into how those metrics were obtained. Desktop and business client email may paint a different picture but I seriously doubt those would be the vector for terrorists. Regardless, you can't use phone marketshare as a reason for not asking Apple. It doesn't make sense.

Apple, Microsoft, and Google all state they haven't been approached with a request like this. Apple and Google were both pretty emphatic in their response. Hell no. Microsoft on the other hand, their response was a bit more vague and non-commital regarding their response if requested to do something similar.
"We have never engaged in the secret scanning of email traffic like what has been reported today about Yahoo." - Microsoft. If someone gave me a response like that, my first question would be "Well what kind of secret email scanning have you done?"
Score: 5 Votes (Like | Disagree)