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Sarah Johnston

Sarah Johnston

About Sarah Johnston

Enjoying the good old years of retirement. No sorry this isn't me. I just love the picture of my great grandmother and use it on all of my accounts.

Sarah Johnston

Latest Posts

Been Hacked

Have you Been Hacked? Now What?

If your ISP provider notified you that your computer has become part of a zombie botnet, take them seriously. Your computer has been hacked and it is critical that you take evasive actions to protect your data. A virus or other malware that is installed on your computer can now be used to attack ot ...
Hadoop and Big Data

Understanding Hadoop and Big Data

Hadoop is a set of open source programs and procedures that are used in conjunction with big data operations as its backbone. The set of programs and procedures can be modified to fit any company’s needs. The Hadoop backbone helps companies analyze their big data. In the Hadoop program, there ...

Protect Your Computer Against the Trojan Horse

Trojans come in many forms and can perform different actions on your computer or network; including deleting data, copying data, modifying data, blocking data, disrupting computer networks or computers. Trojans are different from viruses and other type of malware because they can’t self-repli ...