Number of PCs Infected by Trojan Viruses, Monitored by 360 Security Center 10,000 8000 6000 5,020 5,160 5,161 4,955 5,309 5,184 5,076 5,138 4,882 4,892 4,787 4,213 4000 2000 0 Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sept. Oct. Nov. Dec. Source: 360 Security Center 2016.12 Figure 82 Number of PCs Infected by Trojan Viruses, Monitored by 360 Security Center (II) The Number of Android Mobile Phones Infected by Malware 25 Up to December 2016, 108 million android mobile phones were infected by various malware, which was monitored by 360 Security Center. The number of infected devices reached 36.62 million and 27.87 million respectively in January and February, two higher figures. The number of infected devices was on the decline in the third and fourth quarters. Number of Android Mobile Phones Infected by Malware, 10,000 5000 Monitored by 360 Security Center 4000 3,662 3000 2,787 2,381 2,192 2,250 2,055 1,933 1,995 2000 1,612 1,410 1,395 1,636 1000 0 Jan. Feb. Mar. Apr. May. Jun. Jul. Aug. Sept. Oct. Nov. Dec. Source: 360 Security Center 2016.12 Figure 83 Number of Android Mobile Phones Infected by Malware, Monitored by 360 Security Center 25 108 The data is processed through duplication eliminating. The 39th Statistical Report on Internet Development in China