Windows Phone 7 data flaw blamed on Yahoo

A glitch in the way Yahoo Mail and Windows Phone 7 communicated led to the "phantom data" loss.

Windows Phone 7

Microsoft has said so-called "phantom data" leakages from Windows Phone 7 devices was the result of an issue with Yahoo Mail.

Windows Phone 7 users started complaining at the start of the year they had been charged for data that simply did not match up to how much they had actually used.

Advertisement - Article continues below

Some said despite not having used much of their 3G allowance, they had been warned by their providers about going over or close to their limit.

"We have determined that an inefficiency exists in the synchronisation of email between the Windows Phone mail client and Yahoo Mail," Microsoft said.

"This inefficiency can result in larger than expected data usage for a very small percentage of users."

Initially, Microsoft said an unnamed third-party was responsible for the data leakage.

It appears Microsoft has acted after blogger Rafael Rivera discovered there was an issue with the Yahoo Mail service, meaning it sent more data than necessary.

Rivera said there was an error in the code telling Windows Phone 7 how to retrieve messages from the Yahoo service.

"Yahoo's IMAP [Internet Message Access Protocol] server (winmo.imap.mail.yahoo.com) does not respond to FETCH requests correctly," Rivera wrote in a blog post.

"Yahoo is sending 25 times as much data as it needs to This can also be read as: Your phone is downloading 25 times as much data as it normally would, had you sided with another email provider."

Advertisement
Advertisement - Article continues below

Yahoo could not be reached for comment at the time of publication.

Featured Resources

Top 5 challenges of migrating applications to the cloud

Explore how VMware Cloud on AWS helps to address common cloud migration challenges

Download now

3 reasons why now is the time to rethink your network

Changing requirements call for new solutions

Download now

All-flash buyer’s guide

Tips for evaluating Solid-State Arrays

Download now

Enabling enterprise machine and deep learning with intelligent storage

The power of AI can only be realised through efficient and performant delivery of data

Download now
Advertisement

Recommended

Visit/security/data-breaches/355056/vpnmentors-web-mapping-project-finds-more-exposed-military-files-via
data breaches

Printing company exposes 343GB of sensitive military data

20 Mar 2020
Visit/security/355013/10-quick-tips-to-identifying-phishing-emails
Security

10 quick tips to identifying phishing emails

16 Mar 2020
Visit/business-strategy/mergers-and-acquisitions/354941/panda-security-to-be-acquired-by-watchguard
mergers and acquisitions

Panda Security to be acquired by WatchGuard

9 Mar 2020
Visit/mobile/23617/the-best-smartphones-to-buy
Mobile

Best smartphone 2019: Apple, Samsung and OnePlus duke it out

24 Dec 2019

Most Popular

Visit/security/privacy/355155/zoom-kills-facebook-integration-after-data-transfer-backlash
privacy

Zoom kills Facebook integration after data transfer backlash

30 Mar 2020
Visit/infrastructure/server-storage/355118/hpe-warns-of-critical-bug-that-destroys-ssds-after-40000-hours
Server & storage

HPE warns of 'critical' bug that destroys SSDs after 40,000 hours

26 Mar 2020
Visit/software/355113/companies-offering-free-software-to-fight-covid-19
Software

These are the companies offering free software during the coronavirus crisis

25 Mar 2020
Visit/cloud/355098/ibm-dedicates-supercomputing-power-to-coronavirus-researchers
high-performance computing (HPC)

IBM dedicates supercomputing power to coronavirus research

24 Mar 2020