There are many information security threats that we need to be aware of and protect against in order to ensure our sensitive information remains secure. False alarms can cause more problems than the real event, so educate yourself on what is - and, just as importantly, what isn't - a threat to computer security.
Threat landscape. Malware, viruses and bots can come from any direction. Staying on top of alerts, strong passwords, and keeping your operating system and antivirus software current on updates will go a long way to help.
Phishing scams. Attempts by hackers and cybercriminals to steal personal information or hijack computing resources for nefarious purposes by deception.
Spam. Spam is so cheap to send that spammers only need a few sales to make a profit; some reports now put the percentage of email that's spam at 95% and rising. The only way to stop spam is for everyone in the world to not respond.
Viruses and malware. Malware includes viruses, worms, trojan horses, spyware, adware, scareware, rootkits, exploits, and any other piece of software designed to disrupt, destroy or steal valuable information.