sk.comは安全ですか？

sk.com / SKUSA provides support to SKbroadband Co / *****, which sustains IP addresses used to send "critical" amounts of spam during a 30-day period:. ***** (SKbroadband Co / skbroadband.com, supported by sk.com) ***** (skbroadband, which is supported by sk.com. IP addresses sending critical amounts of spam, bottom of page) AND sk.com is providing support to ***** / SK Telecom Co.,Ltd which sustains IP addresses used to send "critical" amounts of spam during a 30-day period. ***** (sktelecom.com / SK Telecom Co.,Ltd, supported by sk.com) ***** (bottom of page) AND sk.com is supporting skbroadband.com, which has a poor reputation. See: ***** (skbroadband.com is owned by SKbroadband Co., Ltd. (skBroadband.com), supported by sk.com) ***** (the poor reputation of skbroadband.com / SKbroadband Co., Ltd., which is supported by sk.com) AND sk.com is supporting *****, which has an unsatisfactory reputation. See: ***** (the registrant owner of hanaro.com is SKbroadband Co., Ltd., supported by sk.com) ***** (the unsatisfactory reputation of hanaro.com, which SKbroadband Co., Ltd. the registrant owner of, supported by sk.com) OTHER: February 2016, SK C&C Co. / sk.com is running few spamming IP addresses continuously during a 30-day period, even though sk.com supports "critical" amounts of spam on other 'SK' networks (noted above). ***** (bottom of page)