Welcome to the SANS Tip of the Day blog. Each day we post a new tip that focuses on and explains a specific topic and actionable steps people can take to protect themselves, their family and their organization.
Now adays most of us have numerous devices in our homes connect to the Internet. From thermostats and gaming consoles to baby monitors, door locks or even your car. Ensure you change the default passwords on these devices and enable automatic updating.
Eventually, we all get hacked. The bad guys are very persistent and we can all make a mistake. If you suspect you have been hacked never try to fix the situation, instead report it right away. If you try to fix the situation, such as paying an online ransom or deleting the infected files, not only could you stil be hacked but you are most likely causing far more harm than good.
You may not realize it, but you are a target. Your computer, your work and personal accounts and your information are all highly valuable to cyber criminals. Be mindful that bad guys are out to get you.
More and more scams and attacks are happening over the phone. Whenever you get an urgent phone call on the phone pressuring you to do something (such as a caller pretending to be the tax department or Microsoft Tech Support) be very suspicious. It's most likely a scammer trying to trick you out of money or pressure you into making a mistake. Protect yourself, simply hang up the phone. You are not being rude, the person on the other line is trying to take advantage of you.
Never send an email when you are angry; you will most likely regret it later. Instead, when you are emotional and want to reply to someone, open up an email and write everything you feel, but do not send it. (Be sure there is no name in the TO field so that you do not accidently send it.) After you have vented, save the email and come back an hour later. You only want to reply to any type of emotional situation after you have had time to cool down.
When shopping online, always use your credit cards instead of a debit card. If any fraud happens, it is far easier to recover your money from a credit card transaction. Gift cards and one-time-use credit card numbers are even more secure.
CEO Fraud / BEC is a type of targeted attack. It commonly involves a cyber criminally pretending to be your boss, then tricking or fooling you into sending the criminal highly sensitive information or initiating a wire transfer. Be highly suspicious of any emails demanding immediate action and/or asking you to bypass any security procedures.
Malware is software--a computer program--used to perform malicious actions. In fact, the term malware is a combination of the words malicious and software. Cyber criminals install malware on your computers or devices to gain control over them or gain access to what they contain. Once installed, these attackers can use malware to spy on your online activities, steal your passwords and files, or use your system to attack others.
A common method cyber criminals use to hack into people's computers is to send them emails with malicious links. People are tricked into opening these links because they appear to come from someone or something they know and trust. If you click on a link, you may be taken to a site that attempts to harvest your information or tries to hack into your computer. Only click on links that you were expecting. Not sure about an email? Call the person to confirm they sent it.