The number of attacks aimed at teleworking has increased rapidly, and know the terrible tricks

　Over the past year, the telework environment has rapidly spread.According to the Tokyo Metropolitan Government, the telework implementation rate for companies in Tokyo with more than 30 employees is 56..6 % (as of April 2021).Telework is likely to be established as a major office style in the future.What is important is security in teleworking environments.

「境界防御」では守り切れない

　Until now, many companies have used "boundary defense" that separate corporate networks and external networks such as the Internet and prevent them from entering at that boundary.Specifically, security equipment such as firewalls and UTMs has been installed on the border to protect information in the corporate network.

　However, the telework environment exists outside the boundary.Computers lent by companies are taken out of their homes and satellite offices.It is difficult to install a security device such as UTM on a home network because it costs money.If your home router breaks through, you will be immediately exposed to cyber attacks.

　If you always connect with VPN, you can place your computer under the corporate network.However, if the number of telework users increases, the cost of the VPN device may be expensive or the network band may be tight.

　For this reason, many companies will be connected only when they are needed, rather than constantly connecting with VPN.

　Also, due to budget, one computer may not be able to be lent to one person.In that case, you will work using your home computer.Unlike PCs lent by companies, personal computers at home do not manage companies, increasing security risks.

　In other words, in a telework environment, business data is handled in a situation where security risks are higher than corporate networks.The attacker cannot leave this situation.In fact, cyber attacks aimed at teleworking environments are coming one after another.

　To solidify the defense, know the trick of attacks.So, let's take a concrete look at the attacks aimed at the telework environment.

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