Cybersecurity for small and medium businesses

Business security information

In many companies, the issue of viruses, spam and hackers is one of the main concerns, which leads to the need to hire and install different protection and early prevention methods to maintain a secure system inside or outside the company. .

In this way we will prioritize based on the digital work that a company must face and use on a day-to-day basis to see all the aspects that are needed to protect them.

Email service

All companies today use email to maintain different types of communication between employees, other companies, banks or even public entities such as the Treasury, Social Security, etc...

That is why email has been the most effective means of attack for years for cyber criminals who carry out different types of attacks, including:

Online Scams

Where they try to obtain personal and banking information from their victims to establish a fraudulent payment system selling fake products, services, etc.

Credential theft

Emails that generally try to impersonate public entities, banks or sites frequently used by companies, where they tell them: that they need to change their password, that their accounts have been compromised, the need to verify their identity...

Sending viruses, malware or ransomware

Emails that arrive with attached files asking the user to review or open them using some of the following examples: review a budget, unpaid invoices, fines or even files sent from other companies posing in their entirety as an employee or department without raising suspicions. This attack is one of the most dangerous, since it fully or partially exposes a company's physical equipment and can affect entire systems within a network with the purpose of: kidnapping corporate files for a ransom, industrial espionage, data theft. valuable customer information, etc.

AntiSpam Protection

One of the main protection software to try to prevent the receipt of this type of email in the vast majority of cases is to use AntiSpam services configured in the email services, whether installed by the Hosting company itself or by your own systems department. .

Mail Antivirus Protection

Most antivirus programs such as Avast, Kaspersky, Total 360 among others. They have a real-time protection system to control emails at the same time we receive them, this way we have an extra layer of protection by controlling the files attached to each email.

Services on internal or external networks

By network service we understand everything that has to do with communication between teams inside or outside a company, whether it is browsing the Internet, sending an email, using cloud services such as Dropbox, etc.

Firewall or firewall system

In these cases it will always be necessary to use at least some type of program or physical device called a firewall to control the general network of the company or the individual network of each computer.

A firewall, as its name suggests, is the software in charge of controlling and examining each request or use of the network where it is located. This can be a physical device connected to a central server that will act as a gateway to the rest of the network. corporate network or individually team by team.

In this way, the firewall will control all internal or external connections, indicating the service or program that each connection is using, offering the person in charge of configuring the firewall the ability to allow, deny or limit internal or external connections.

Examples of use

A firewall can help prevent viruses from entering a company's network or prevent them from carrying out their tasks, this is because many times viruses, in order to go unnoticed by antivirus programs or other types of controls, only install a part of the virus that makes it easier for them to obtain information from the infected computer and connect to the Internet to download the most appropriate virus for the computer without setting off alarms.

It is the firewall who will detect the virus download connection and will be in charge of denying the request according to its default configuration parameters or under manual control.

It can also be used to allow or deny connections with external services, for example: deny the use of social networks such as Facebook, Instagram or Twitter within the company.

In addition to allowing or generating connections between internal computers, so that certain computers cannot connect to other computers or their functionalities are limited so that they can only access or be blocked to specific services such as FTP servers, print servers, etc.

Disadvantages

A firewall is one of the best tools to monitor and control the use of a company's network, but there are some factors to take into account:

    1. You can block services that should not be blocked automatically, preventing access at that time.
    2. It can saturate the network, since it needs to control each connection, making it slower or taking longer to make the connection.
    3. It does not serve as a protection method against viruses or other programs since they have no detection or control over files.

file service

In all companies it is necessary to work, download and modify files of all types, especially office files such as word, excel or access or even programs that generate this type of files to save or export their data in documents when the user requests it.

This is why all equipment installed in a company used by its employees, clients or any person internal or external to the company must be protected with a protection program.

Antivirus programs

An antivirus program is a program in charge of reviewing all the files available on a computer in real time. The antivirus will analyze the content of each file in search of malicious code or other hidden files that could endanger the computer or even the entire company network.

AntiRansomware programs

Enterprise security is an important aspect of today's information technology environment.

The ransomware attack is one of the most common with exponential growth in recent years due to its high capacity to spread and the large amount of damage it does to companies around the world.

An anti-ransomware security program will be in charge of monitoring and controlling the most vulnerable folders on your computer or server, detecting unauthorized or suspicious changes in different types of files, blocking the attack, modification or attempted hijacking by the malware or program that attempts to perform these types of actions.

It should be noted that anti-ransomware programs are not always effective, like antivirus programs. This is due to the high demand that these companies have every day with the appearance of thousands of different viruses every week.

Backup programs

All companies should create and maintain a backup system for their most important files or equipment. As I already said in the previous paragraph, antivirus and antiransomware companies do not have all the necessary means to combat the number of digital threats that appear day after day.

Therefore, companies have to contemplate an attack where the deletion of files or their hijacking is something real that can occur at any time.

And that is why it is necessary to create an ecosystem of backup copies, which can guarantee total recovery in the event of a disaster of files, programs, databases and everything in general so that the company can continue its work as soon as possible. .

Which protection system best suits my company?

All the systems described in this publication should be mandatory for all companies, but if your company has not yet started to protect its infrastructure and you do not know where to start, I would recommend the following:

  1. Install an antivirus program on each computer in the company to increase its security, many of them, for example Avast, already include an anti-ransomware system.
  2. Install a backup program to keep your files or programs safe in the event of a computer disaster using, for example: Cobian Backup, which is totally free and has all the main functions or Acronis True Image if you need something more complete with cloud protection.
  3. Install a firewall program on servers initially and, if necessary, on each computer to maximize network protection.

In addition, the continued training of your employees, partners or personnel in charge of using the equipment, whether internally or externally, is also very important so that they themselves can learn to recognize key points and avoid being hacked through the use of social engineering or data falsification. by an attacker.

And this is not all, there are other much more advanced security systems that would serve, for example, to virtualize attacks before they occur, to test all the files received in emails before they are actually received to analyze and interpret what they really do, encryption systems to protect all types of documents, etc.

Remember! You can leave your comment to contribute other ideas, ask questions or thank me for the work I have done with this guide.

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