hacking is identifying and exploiting weaknesses in computer systems and/or computer networks. cybercrime committing a crime with the aid ofcomputers and informantion technology infrastructure. ethical hacking is about improving the sercurity of computer systems and/or computer networks. sometimes, hackers want to steal your data so that they can hold it for ransom. this type of attack is a ransomware attack. ... hackers usually execute ransomware attacks by gaining unauthorized access to data, then encrypting it or moving it and charging a ransom in order to restore your access to it.,
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Cybercrime is projected to cost the global economy more than $2 trillion a year by 2019 according to market analysts Juniper Research, and many of those scams start with phishing — tricking people into clicking on nefarious links through legitimate-looking emails.
An easy way to block these attacks: Change the Domain Name System (DNS) that your computer uses. Most computers connect to the DNS that’s automatically set by their internet service providers, but there are safer alternatives.