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Personal data is being collected and transmitted insecurely by thousands of apps using code from the Chinese net giant Baidu, say security researchers.
Millions of Chinese people are believed to have been affected by the data leaks, said security experts at the University of Toronto.
The data reveals where people are, search terms, sites visited and the ID numbers of devices they own.
Baidu said it had tackled the problems with the insecure computer code.
‘Shoddy design’
The code is found in a software development kit that can be used to create apps for Android phones and programs for Windows.
Baidu itself used it to make web browsers for Android and Windows and many other firms have used the kit too.
Apps and browsers made using the Baidu kit have been downloaded hundreds of millions of times, said researchers at Toronto’s Citizen Lab in the report. As part of a long-running research project, the Lab has focussed on privacy and personal data use in China. Last year the team found shortcomings in the Alibaba browser.
The latest report found several security and privacy shortcomings in the Baidu code.
Some data, including GPS coordinates and search terms, is sent in plain text.
In addition, the protections added to other forms of information, such as unique device IDs, could easily be broken.
Poor protection of apps made with the kit also made users “susceptible” to fake updates that could give an attacker access to a phone or a Windows computer.
The research team also found problems with how Alibaba’s browser handles personal data.
“The transmission of personal data without properly implemented encryption can expose a user’s data to surveillance,” said the authors in their report.
Worryingly, they added, users would have no warning that the data was being transmitted or gathered.
“The leakage of such user data is particularly problematic for individuals who use these applications and their devices to engage in politically sensitive communications,” said the report.
“It’s either shoddy design or it’s surveillance by design,” Ron Deibert, director of the Citizen Lab, told Reuters.
Fixed?
Citizen Lab said that Baidu had fixed some of the bugs in the code since it had first been told about them in November last year.
However, it added, the poor encryption scheme was still being used on sensitive data.
Baidu said it was collecting the data about users for commercial purposes. Occasionally, it said, it shared the data with partners.
It added that the information was not handed over wholesale to the Chinese authorities.
It said it “only provides what data is lawfully requested by duly constituted law enforcement agencies”.
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By: BBC
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