Ten security measures against unauthorized access attacks

A lot of times , When an unauthorized user accesses the sensitive database and network of the enterprise , Will not be valued by the enterprise , Only after a safety accident , Enterprises will be aware of this neglected “ Everyday behavior ” What are the hidden dangers . therefore , Enterprises should strictly control unauthorized access , Establish a reliable management process , To detect 、 Restrict and prevent unauthorized access events .

In short , When an attacker arbitrarily accesses the network of an enterprise organization , Unauthorized access will occur , Its access objects include databases 、 Device endpoint or application environment, etc .

Unauthorized access is not limited to enterprise systems , It may also be targeted at individual users . such as , The unauthorized use of the user's private mobile phone by others is unauthorized access , There are many ways of unauthorized access to individual users , Will cause all kinds of serious consequences , Such as data leakage 、 Financial loss 、 Service not available （DDoS attack ） Or lose control of the entire network （ Blackmail software attacks ） etc. .

The attacker only needs to find the weak links such as security vulnerabilities when he accesses the sensitive location of the target 、 Unprotected endpoint or password collision library, etc , Unauthorized access attacks can be implemented in a variety of ways .

Once an attacker accesses a sensitive area in the enterprise system , It is possible to continue to visit other locations without restrictions . for example , If they find the password of the enterprise sensitive system , By using this account password, the attack scope can be extended to the entire enterprise network . Similarly , Uploading malicious documents or running malicious software is also a common means for attackers to take advantage of access rights .

In order to help enterprise organizations further avoid unauthorized network access , Avoid potential security risks , This paper summarizes ten security measures for unauthorized network access management , Here are the details ：

1、 Strengthen the physical security of the equipment

If the attacker gains physical access to the sensitive system inside the enterprise , The technical safety measures of the enterprise organization will be in vain . Therefore, the enterprise should try to ensure that the internal computer or other equipment is in a password locked state , Moreover, the enterprise organization should not publicize the login password in the office or next to the above-mentioned relevant systems . Besides , For sensitive files, you should customize advanced access rights , Because strict care of all devices is the key to prevent unauthorized access .

2、 Set strong password

Password cracking tools are becoming more intelligent , Password leaks are becoming more common , So it's important to set a unique strong password . Reuse passwords 、 Use a known password or a word that is easy to guess 、 There are many risks in using phrases as passwords . for example ,“admin/admin” Is the most commonly used username and password combination in many organizations , This common password is very risky .

Ideally , The password should be a unique long password （ At least 11 Characters ）, It's best to mix numbers with special characters . The more complex the password , The longer it takes an attacker to gain unauthorized access .

3、 Adopt multifactor authentication

In addition to strong passwords , Another effective strategy to ensure the security of enterprise system accounts is to strengthen the security of login links by using multi factor authentication . Whether through a one-time password （OTP）、 Biometric scanning , Or the authenticator Application , Even if the password is compromised , Multi factor authentication measures can further ensure the security of the authorized login account .

4、 Configure a powerful firewall

For the increasing cyber threats , Enterprises can choose to configure powerful firewalls to solve security problems and prevent malicious attacks , These firewalls need to be able to protect the enterprise network 、Web Functions of applications and other core components . Business organizations can hire professional hosting service providers （MSP）, To configure a firewall that meets its own network security requirements .

5、 Restrict user access to sensitive systems

Another effective strategy to prevent attackers from unauthorized access to enterprise systems or devices is , At the beginning of the establishment of the system, authorized access is restricted , Only the most trusted employees are required to have access to , This approach is very effective for protecting sensitive databases and devices .

6、 Single sign on （SSO）

Single sign on （SSO） Help manage users and more effectively IT Account of the person . One side , Users only need to remember a password to log in ; On the other hand ,IT Personnel can quickly terminate abnormal behavior activities when necessary , Then you can easily manage your account . for example , If the attacker's fraudulent use of employee accounts is detected , The security team can immediately stop the access of the account to all other systems .

7、 Application IP White list

IP White list and Web Application firewall （WAF） It can make it more convenient for legitimate users in the enterprise organization to access , Especially useful in remote working environments , But for using dynamic IP、 Access agent or VPN It doesn't work for users . therefore , It is best for remote users to seek fixed IP Address , No matter what IP The address is from itself ISP, Or from VPN/ Agent service provider .

8、 Monitor login activity

The enterprise organization should be able to detect abnormal login activities through monitoring . for example , After the organization has deployed the monitoring system , You can find suspicious account login or abnormal login activities in the enterprise system or equipment in time , And take corresponding remedial strategies , Such as revoking account access to avoid attacks .

9、 Run vulnerability scanning regularly

Because the attacker is always waiting for the opportunity to find the unpatched vulnerability , And then implement unauthorized access to the target network . therefore , The enterprise organization shall regularly conduct vulnerability scanning or choose to hire third-party professionals , assist IT Employee management IT Security .

10、 Update the application software version in time

One of the biggest threats to business security is that the system with vulnerabilities is not repaired in time , At the same time, it is also a problem that is most easily ignored by enterprise organizations .Red Cross The recent cyber attack on the company is caused by the loopholes that have not been fixed in time . therefore , Business organizations must take effective measures 、 Powerful patch management strategy .

Reference link ：

https://latesthackingnews.com/2022/06/27/how-to-detect-and-respond-to-unauthorized-access/.