Signal messaging app turns over minimal data in first subpoena
- Donald Trump Sworn in as 45th U.S. President
- Wall Street ends higher as Trump becomes president
- Walgreens Boots Alliance (WBA) Said to Face Antitrust Concern for Rite Aid (RAD) Fix - Bloomberg
- Bristol-Myers Squibb (BMY) Says It Won't Pursue Accelerated U.S. Regulatory Pathway for Opdivo Plus Yervoy in Lung Cancer
- Apple (AAPL) Sues Qualcomm (QCOM) Over Patent Royalties in Antitrust Case - Bloomberg
Get instant alerts when news breaks on your stocks. Claim your 2-week free trial to StreetInsider Premium here.
By Joseph Menn
SAN FRANCISCO (Reuters) - Open Whisper Systems, the developer of encrypted messaging app Signal, received a subpoena earlier this year requesting user information but was only able to supply the duration of a user's membership, according to court documents unsealed last week. An assistant attorney in the U.S. state of Virginia requested email addresses, history logs, browser cookie data and other information associated with two phone numbers as part of a grand jury probe, the redacted documents showed.
The request was made in the first half of this year, the documents showed.
Citing its encryption technology, which is also used in other messaging services such as Facebook Inc's Whatsapp, Open Whisper Systems said it was only able to supply the registration date and the last date one of the numbers was used.
The company had no information about the other number, according to the documents.
"We've designed Signal so it minimizes the amount of data we retain on users, and we don't really have anything to respond with in situations like this," Open Whisper Systems security expert Moxie Marlinspike told Reuters.
The subpoena was the first the company has received, he said.
More than 2 billion people use a form of Signal's code, though companies licensed to use the code keep related information about users, Marlinspike said.
(Reporting by Joseph Menn; Editing by Christopher Cushing)
Serious News for Serious Traders! Try StreetInsider.com Premium Free!
You May Also Be Interested In
- Raymond James Upgrades Facebook (FB) to Strong Buy on Positive Checks, Attractive Risk/Reward
- Romanian nightclub fire sends dozens to hospitals
- Russia's Putin ready to meet Trump, preparations may take months: TASS
Create E-mail Alert Related CategoriesReuters
Sign up for StreetInsider Free!
Receive full access to all new and archived articles, unlimited portfolio tracking, e-mail alerts, custom newswires and RSS feeds - and more!