Information security: how to protect critical data, minimize risks, and keep your business running smoothly

Cyber incidents cost CIS businesses about 80 billion rubles in just a few months. These losses are made up not of abstract threats, but of very concrete issues: process stoppages, regulatory fines, data loss, and failed contracts. We explain how to build information security protection: which data requires priority protection, which threats pose the greatest risk, and how to step by step create an information security system that reduces losses and supports operational continuity.

In the first five months of 2025, the total losses of CIS companies from cyberattacks exceeded 80 billion rubles According to the CIS Ministry of Internal Affairs, which is 20-25% higher than last year. This is not about hypothetical risks, but direct losses: downtime, regulatory fines, loss of customer data, and broken contracts. Information security (IS) in such a situation, it is not a set of separate IT tools, but a risk management system for data and digital processes.

Antivirus software and a firewall solve only part of the problem. The key question is which data is critical to the company's operations and what the consequences would be if it were lost, altered, or unavailable. Information security goals and principles The main goal of information security- protection of business assets, first and foremost data. According to GOST, information security is the state of protection of information and infrastructure in which its key properties are preserved.

An effective system is built not around individual technologies, but around a process: - risk assessment; - asset prioritization; - implementation of technical, organizational, and legal measures; - regular monitoring and updates. This approach enables organizations to invest in security deliberately - where the potential damage is greatest.

CIA triad: the basic model of data protection All information security measures rest on 3 fundamental principles of information: 1. Confidentiality- means that each document or file in the system is opened only by the employees who need it for their work. Violations lead to leaks, fines, legal risks, and revenue loss. 2. Integrity- guarantees data integrity and correctness. For business, this means reliable reporting and stable system operation.

Integrity breaches lead to wrong decisions and process failures. 3. Availability- ensures access to information and services at the right time. DDoS attacks and infrastructure outages hit this principle directly, causing downtime, supply disruptions, and customer churn.

Which data really need protection Protecting all information assets without exception economically unjustified. Priority should go to assets whose loss would cause the greatest damage. - Personal data.Are governed Federal Law GDPR. Leaks lead to large fines, audits, and loss of customer trust. - Key commercial information.Customer databases, technologies, development plans, R&D results.

Losing them effectively means handing competitors your investments, time, and market advantages. - Critical operational information. 1C databases, ERP and MES systems, internal policies.

If this data becomes unavailable or damaged, business processes stop and significant financial losses follow. Financial and accounting reporting.Distortion or unauthorized disclosure of information can lead to regulatory claims, account freezes, and loss of trust from partners. According to analysts, in 2024 the CIS information security solutions market grew by 30%,reaching a volume of about 593 billion rubles.This reflects a practical business approach: investments in information security are seen as a way to reduce the likelihood of major losses, shorten recovery time after incidents, and ensure stable operation of critical systems.

Information security decisions directly affect operational continuity, regulatory compliance, and risk control. Practice shows that basic tools such as antivirus software and a firewall are not enough, especially amid the growth of phishing and targeted attacks, including those using automated and AI tools. Organizational measures: managing risk and human behavior Organizational measures define how employees handle information and what happens during an incident.

They set the rules and reduce the risk of incidents caused by staff. Policies and procedures- information handling standards must be formalized: the information security policy, procedures for handling confidential data, and incident response scenarios. These documents are used for staff training, access control, and incident review.

If policies are not applied in practice, they do not affect the level of risk. - Employee training- regular employee training reduces the risk of phishing and credential compromise. Short formats work best: analysis of real attacks, reminders about mistakes, and test phishing campaigns.

Training should be practical and aimed first of all at new employees and users with elevated privileges. Access management- access on a need-to-know basis: an employee gets only the rights needed for current tasks. This reduces damage from mistakes or misuse and makes control easier. - Recovery planning- recovery and business continuity instructions help reduce downtime and losses in the event of a failure or attack.

It is important not only to have a plan, but also to test it regularly. Important!Organizational measures also include protection of meeting rooms, executive offices, and confidential discussion areas(acoustic and visual protection). This reduces the risk of information leakage outside digital channels. In other words, information security covers both the IT environment and physical processes inside the company.

Technical and software tools: practical implementation of protection The technical layer consists of tools that automatically prevent attacks, detect incidents, and help respond to them. In practice, not a single system but a combination of solutions is effective. The table shows the key categories of tools, their examples, and the business problems they solve.

An information security system is an ongoing process that evolves with the business, the IT landscape, and threats. Below are the steps that will help you build protection deliberately rather than piecemeal.

1. Asset inventory and assessment Determine which data and systems are truly important for the company. For each asset, answer three questions: - what happens if the data is stolen; - what happens if it is altered; - what happens if it becomes unavailable for an hour, a day, or a week. This way, you will not spend your budget protecting everything indiscriminately, but will focus on what the company's operations really depend on: customer databases, critical know-how, financial systems. 2.

Risk analysis and attack scenarios After identifying assets, you need to understand which threats are real for them. Conduct a technical infrastructure audit - vulnerabilities, settings, access rights, and attack simulation. Assess threats from a practical angle: - who might be interested in this data; - which entry points could be used for an attack (employees, public services, contractors); what damage the business would suffer if the attack succeeds.

The result is not a generic list of threats, but prioritized risks with clear scenarios. This list helps you choose protective measures with justification and explain to management why specific investments are needed. 3. Policies and procedures Define the rules that govern security in the company. The minimum set includes: an information security policy; rules for handling confidential data; an incident response plan.

Documents should be concise, specific, and known to every employee. If policies exist only for reporting purposes, they do not reduce risk or help in a crisis. 4. Implementing technical controls Choose technical solutions only after you understand your assets and threats. Otherwise, you risk buying tools that do not address real problems.

It is important not just to deploy the solutions (we listed them earlier in the table), but to connect them so you get a complete picture and detect incidents faster. 5. Training and working with staff Most attacks begin with employee actions, so training is a mandatory part of the system. Short practical formats work best: analysis of real attacks, reminders about common mistakes, and test phishing campaigns. 6.

Monitoring, response, and improvement. Security requires constant oversight. Set up event monitoring and regularly check how the security measures work: - conduct internal policy compliance reviews; - periodically commission penetration testing; - rehearse incident scenarios according to a preprepared plan. Each audit or incident provides information for improvement.

After that, the cycle starts again - with a review of assets and risks. Who usually takes part in implementation Usually several teams work on the information security system at once: - an internal specialist or security team responsible for daily operations; - an integrator or vendor that deploys and configures technical solutions; - external auditors or consultants for independent assessment and strategy; - a lawyer ensuring compliance with legal requirements.

This division reduces the burden on the business and improves decision quality. In practice, the difficulty is not in the roles themselves, but in the handoffs between them. The vendor is responsible for how its product works, the auditor for the report, the lawyer for the wording in the documents, and none of them is responsible for whether the overall protection covers the events the business fears most.

It is this gap that the integrator has to close: they connect security tools with each other and with the company's production systems, translate regulatory requirements into specific settings, and leave the client team with a working process rather than a set of disconnected consoles. That is why a contractor should be chosen based on whether they start the conversation with business processes and unacceptable events, rather than with a license price list.

KT.Team gathers a turnkey comprehensive information security system: an audit of the current state, a map of critical data and unacceptable events, deployment of security tools, and embedding information security into daily processes - from employee onboarding to development.

Common mistakes In practice, businesses regularly miss several important points: - they do not revoke access for dismissed employees; - they do not control privileged and service accounts; - they ignore non-digital leakage channels (paper documents, meeting rooms, printers); - they make backups but do not verify that recovery is possible. If these gaps are not closed, the company may face a breach or a data leak.

Situation: "Svyaznoy" operates an ecosystem of public online services: an e-commerce store, financial products, operator selection services, and additional digital services. The company's websites receive about 15 millionusers, and online sales turnover exceeds 22 billion rubles. This level of traffic and visibility makes services a constant target for attacks, from automated bots to attempts to exploit vulnerabilities and disrupt availability.

For business, the consequences of any incident are always twofold: immediate financial losses and long-term reputational damage.

The company was looking for a solution that: - protects against common web attacks; - detects new and atypical attack scenarios, not just signatures; - blocks bots and fraudulent activity; - does not reduce site performance under high load; - makes it easy to add protection for new services without complex fine-tuning. Key requirement - protection should work automatically and scale with the business. Solution:the partner team implemented a comprehensive information security system, including a specialized web application firewall (WAF) with event correlation and behavioral analysis support.

This approach makes it possible to detect complex and previously unknown attacks instead of relying only on signature-based filtering. As a resultalready during testing, the system: detected and blocked more than 100 attack attempts; identified exploitation of critical vulnerabilities, including SQL injection and Shellshock; recorded credential stuffing and attempts to upload malicious code; operated without noticeable impact on service speed or stability.

What other companies should consider The experience of Svyaznoy shows that for businesses with public, high-load web services, application-layer protection is a basic element of information security. When choosing a WAF, it is important to assess not only the list of supported attacks, but also: - the ability to detect anomalous behavior; - resilience under heavy load; - ease of scaling for new services.

A specialized WAF becomes a critical tool for protecting revenue, customer data, and the continuity of an online business, especially amid the steady growth of attacks on web applications. Who is responsible for what in this setup - the provider for the channel, the firewall for application requests, the development team for the code - and what we handle is covered in the section web application and API protection.