The world's most popular mobile phone operating system Shane Doan Jersey , Android, has been found to carry its worst vulnerabilities to date.

Android phone owners have been told to be on the alert, as their smartphones are susceptible to hacking simply from receiving a multimedia message without any user interaction. Joshua Drake, security researcher with Zimperium zLabs and co-author of Android Hacker's Handbook, estimated in his latest research note issued on Monday that 95 percent of Android devices, or 950 million Android gadgets, carry a code known as "Stagefright Clayton Keller Jersey ," a media library used to process several media formats.

"Since media processing is often time-sensitive, the library is implemented in native code [C++] that is more prone to memory corruption than memory-safe languages like Java," Drake explained in the note.

Needing only targets' mobile phone numbers, malicious attackers can remotely execute the code via a multimedia message delivering a specially crafted media file. Victims can have their phones "trojaned" without taking any action, unlike spear-phishing where they have to open a message, a PDF file or a link.

Google, whose open-source Android system is facing challenges from other operating systems led by Apple Inc's iOS Authentic Coyotes T-Shirts , acted promptly, saying they have taken immediate action and "sent a fix to our partners to protect users."

"This vulnerability was identified in a laboratory setting on older Android devices, and as far as we know, no one has been affected," Google's spokesperson told the Global Times on Wednesday.

Android and derivative devices adopting versions 2.2, which was launched in 2010, and later are vulnerable Authentic Coyotes Hoodie , according to Drake's research. He added that Google has applied patches that the lab submitted to internal code branches, but the update deployment will take a long time.

Complicated market

Google gives its new generation of Android to phone manufacturers who are allowed to tweak the system as they please, which analysts said is a key reason for the rapid popularization of the Android system, but which also makes shipping out a quick update difficult.

Android phones, running the Android Open Source Project, are very different from iPhones, which use a closed operating system that controls the hardware and software.

This makes it fairly easy for Apple to hand out a major revamp to its devices worldwide.

Taking the replacement rate of the two systems as an example Customized Coyotes Jerseys , the newer iteration of Google's Android, version 5.0 Lollipop, powers around 12 percent of Android devices while Apple's latest iOS 8 has seen its adoption rate reach 84 percent as of July 6, according to a report by foreign IT information weblog iDownloadBlog.

As for Chinese Android users, experts are concerned that they will face a longer updating process, because they cannot directly and immediately receive Google's notifications for updates.

"Android device owners in the Chinese mainland usually rely on device manufacturers and domestic various Android-based mobile application stores to protect their phones from malware after Google's services became unavailable," Hao Peiqiang Adidas Arizona Coyotes Jerseys , a Shanghai-based independent mobile app developer, told the Global Times on Tuesday.

Domestic companies need to repack Google's original patches and then distribute them via their self-developed Android app stores, resulting in slower Android updates in the mainland compared to other markets, said Hao.

Based on Google's Android OS, many Chinese smartphone makers have developed their own mobile phone operating systems, but it seems that they are still not immune from major flaws.

"There are definitely loopholes in the Android system, which are complicated Jason Demers Coyotes Jersey ," Li Lei, a PR manager with China's rising smartphone upstart Xiaomi Inc, told the Global Times Tuesday.

But Google has already offered a fix and, as far as the company knows, no problems have occurred on Xiaomi products that run self-developed Android-based MIUI OS, said Li.

Qihoo 360 Technology Co, China's established antivirus software provider Alex Goligoski Coyotes Jersey , is also paying close attention to Stagefright.

The Beijing-based company, which is expected to officially launch its mobile phone operating system 360 OS based on Android on August 16, said they are rapidly fixing the loophole.

"So far, we have yet to discover any malware using the Stagefright code," a PR representative with Qihoo 360's 360 OS division told the Global Times.

Still the leader

Despite the disclosure of what many are calling Android's worst vulnerability, it is hard to imagine large numbers of Android users in China turning to other operating systems immediately, said Hao.

"All operating systems Oliver Ekman-Larsson Coyotes Jersey , including the fairly stable iOS, have their own vulnerabilities, but this does not mean that hackers will use it to create malware and target all ordinary users," he noted.

This is not the first time that foreign research centers have discovered major Android vulnerabilities. In 2014, IBM research teams found an Android loophole that attackers can use to steal users' sensitive information and which could affect 86 percent of Android devices, according to media reports.

Finnish security firm F-Secure said in April 2014 that in the first quarter of 2014, 99 percent of mobile malware threats were designed to operate on Android devices.

Those alerts seem to have had little impact on Android Derek Stepan Coyotes Jersey , which still dominated the market with a 78 percent share in the first quarter of 2015, followed by iOS's 18.3 percent, data from US-based market research firm International Data Corp showed.

Such discoveries have already become a common phenomenon for Android users like Chen Xin, a 29-year-old Beijing resident.

"It is nothing new to me to learn that Android systems have big loopholes. I will still use the system because I can have various choices of phone brands and designs, unle

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