Social networks
As far as we Czechs are concerned, as citizens we are not very afraid of anything on the Internet. We are not very vigilant and 90% of us do not even acknowledge that hackers could attack us. Attackers can use the data we collect to crack our passwords or locate us (which usually doesn\’t take much effort since many of us disclose our current location in our profiles). After obtaining sensitive data, they can send files containing viruses to our contacts. Or they sell our information on the black market
Žena na internetu

The following are the results of a survey conducted by Kaspersky Lab and B2B International in 27 countries, the Czech Republic being 43% of people in the Czech Republic type passwords into their browsers even when connected to public WiFi, and 8% of people admit that social network passwords are one of the three things they worry most about losing.
Ways to protect yourself
Use the strongest passwords possible, with lots of numbers and upper and lower case letters, don\’t turn on the automatic password save feature, don\’t share too much information about yourself (mostly intimate information), use the grouping feature to separate friends into close groups and other groups, don\’t open files you don\’t know even if they are sent by someone you know, avoid public WiFi connections (it is very easy for hackers to hack into your device if you connect to this network), use anti-virus.
Internetový útok
Ransomware is one of the most common forms of cyber attacks today. Ransomware can target not only individuals, but also entire businesses and organizations, disabling them completely.
The best defense against this attack is to back up your data, preferably on an external drive. It is also very important to regularly update your software and use a good antivirus.
If you are already infected with ransomware, paying the ransom is definitely not recommended. This is because they will demand more money and you do not know where your data will end up or whether they will comply.