Qihoo 360 clams that there is a very serious concern about new text message fraud among the most popular cellphone of Samsung-Galaxy S4. Taking advantage of the bug, malware would send malicious info to contacts as well as sending malicious emails from that phone. As a result, owner of the phone, as well as its contacts will probably be accused of fraud and malicious deduction. All Samsung S4 users and some Note2/S3 users will be bothered by this concern, therefore, Qihoo 360 informed Samsung as soon as it noticed the problem. At the same time, Qihoo 360 has released a new version of temporary solution worldwide for S4 users to provide timely protection against security threats.

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Experts realize that the bug exists among the "Cloud Backup" components, which will not verify the identity of the data sender. Consequently, malware could send any messages to any contacts without asking permissions from users. For instance, to pay cellphone bills, to cheat money, and even to send SP custom deduction message.

What's worse, taking advantage of this bug, any third-party applications could send fraud text messages and multimedia messages and put unmarked messages into inbox secretly to attract S4 users in the name of friends, family, banks and so on.

Last December, Samsung had already influenced by Root Access bug problem, which influenced Samsung S3 and Note2 users most. This time, it is Galaxy S4-one of the most popular cellphone in the world, which had 10 million sales just in May, ranking top in the sales of cellphones. Experts also pointed that besides S4 users, users of other Samsung cellphones including S3 and Note2 might be affected by the bug as well.

Considering that there are large numbers of users of Samsung and the threat of the bug is quite huge, Qihoo 360 informed Samsung and the other relative department in China of the bug report immediately after Qihoo 360 found the bug.

Meanwhile, Qihoo 360 came up with a solution in regarding to Samsung official software patches to provide additional protections to cellphones. This new software will have an eye on those malwares and remind users to avoid text message fraud.