Internet is the source to collect data at tour finger tips. It is the huge data source. In this source there are so many problem like hacker, virus and bugs are no the internet safety and usage. Due to increase in cyber crime the hacker can hack your data and document and make you to involve in their crime.
Phishing is also increase during online transactions. To avoid this install an antivirus which stop this phising and made u to have safe net banking. Use trusted network for surfing internet.
Never share you all detail to anyone online.