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Mobile phone crystal 3.2*2.5mm 3225 26M (26.000MHZ) 7.5PF 10PPM 20PPM 30PPM
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Single chip microcomputer STM32L151CCU6
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BGA double-headed needle 031-JJ-5.7L has a round head with a total length of 5.7mm.
The phone bill is inexplicable and gone? Frequently received harassing calls? It may be because of them! The telecommunication service quality notice announced by the Ministry of Industry and Information Technology yesterday showed that in the fourth quarter of the technical inspection, a total of 41 bad software were found, involving the illegal collection and use of user personal information, malicious "sucking fees", and forced bundling of other unrelated application software.
The small partner will quickly check the blacklist below to see if you are recruiting~~
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How do malware absorb money?
Take a malware called "Zombie Album" as an example. This kind of software will spread through SMS link and send a text message to the user "You have an unread MMS photo, please download and install MMS album for free" to trick users into downloading. Installation; after installation, the malware is networked with the background and automatically sends text messages to a batch of numbers.
This type of software will run automatically after installation and will start automatically after booting. They conceal the user to send text messages, unknowingly consume mobile phone charges, and ultimately affect the normal use of the phone.
Among them, parallel brands and small and medium-sized brands are the hardest hit areas of malicious apps. According to Wang Yanhui, secretary-general of the China Mobile Alliance: "At this stage, there are many small-brand mobile phones and even cottage phones in China. It is difficult to guarantee that these terminals are installed at the factory. Even some big-name mobile phone manufacturers are sometimes hard to prevent, and some employees will use hidden means. Some malicious apps are installed."2
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Among them, parallel brands and small and medium-sized brands are the hardest hit areas of malicious apps. According to Wang Yanhui, secretary-general of the China Mobile Alliance: "At this stage, there are many small-brand mobile phones and even cottage phones in China. It is difficult to guarantee that these terminals are installed at the factory. Even some big-name mobile phone manufacturers are sometimes hard to prevent, and some employees will use hidden means. Some malicious apps are loaded."
Usually, in the following two cases, the mobile phone's traffic will be consumed for no reason.
1. The mobile phone is installed with pre-installed software that users rarely use.
2, bad mobile phone applications and advertising plug-ins in mobile phones
So, what kind of mobile phone software is safe to use?
1. Download the application and try to choose the official channel (especially Alipay, Bank APP)
2, observe the application traffic usage, for some applications will quietly use a large amount of traffic to be deleted in time
3. Choose a secure WiFi network for payment or online banking transactions, or use a carrier network. Do not use an unknown security WiFi network to prevent personal information from being intercepted and stolen.
4. If the mobile phone is lost or the account is stolen, report the loss, freeze and change the password in time;
5, when the application is installed or running, be cautious to grant "send SMS" "read SMS" "View the address of the address source Dahe Newspaper WeChat public number"
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