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QR codes have become a major source of smartphone viruses, with more than 100 million smartphone users infected with malicious software in the first six months of this year, according to a report released by internet giant Tencent. 互联网巨头腾讯近日发布的一份报告显示，今年上半年，超过1亿智能手机用户感染过恶意软件，二维码已成为智能手机病毒的一个主要来源。 Tencent's anti-virus program for smartphones prevented 693 million attempted virus attacks in the first half of 2017, an increase of 124.24% year-on-year, and QR codes were a major source of those viruses, accounting for 20.8%, the report said. 报告称，2017年上半年，腾讯的智能手机杀毒软件拦截病毒攻击6.93亿次，同比增长124.24%，二维码成为这些病毒的主要来源之一，占比达20.8%。 The report found that the number of virus attacks on personal computers reached 1 billion in the first half of the year, a 30% increase compared with the previous six months from July to December 2016. 报告发现，今年上半年，针对PC端的病毒攻击次数达到10亿次，环比2016年下半年增长了30%。 | 
