You're worried about your network security. What's the best way to protect your business?

The key areas to consider are 1. Physical security 2. Administrative security 3. Network perimeter security 4. Application security 5. Information security These above areas have standards and guidelines present which needs to be followed..

To protect your business network effectively, access your network and implement minimum baseline security standards which including perimeter layer security controls, network security devices security patches as recommended version, asset physical security, security testing once or twice in a year, role bases access, limited & restricted access to third-party, cyber security awareness to employees, regularly conduct cyber maturity assessment, check effectiveness of threat detection and response etc. adoption of zero trust architecture will add advantage to project the business.

To protect your business network effectively, access your network and implement minimum baseline security standards which including perimeter layer security controls etc and there is more ways for it

When protecting your business from cyber threats, it's crucial to adopt a comprehensive approach recognizing employees as the "human firewall." While technical safeguards like firewalls and antivirus are essential, cybercriminals often exploit human vulnerabilities to gain unauthorized access. Invest in employee training and security awareness programs to foster a strong security culture. Educate staff on identifying threats like phishing, implement strict access controls, and enforce best practices. Regularly conduct security campaigns and phishing simulations. Ensure robust incident response plans and frequently update security policies to stay ahead of emerging threats.

The best approach to safeguarding your business's network security involves implementing robust measures such as firewalls, encryption, employee training, and regular security audits. Stay proactive, vigilant, and informed to mitigate risks effectively.

The best way to protect your business is to implement basic security measures. This involves regularly updating software, configuring firewall settings, encrypting data, using strong passwords, and educating staff about security best practices. These measures lay a solid foundation for safeguarding your network against common threats.

Para controlar acesso aos protocolos e perímetros de redes eu acho útil o firewall do pfsense. Ferramenta fantástica de software livre, leve eficaz e fácil de configurar. Funciona muito bem para restringir e controlar o tráfego entre os sub redes da DMZ na rede local. Além disso ainda faz controle por proxy e acesso remoto por via do VPN e redirecionamento de portas NAT. Mais uma camada de segurança para ajudar na proteção contra acesso não autorizado aos dados sensíveis das organizações e empresas.

When implementing basic security measures, remember to also ensure that vendors requiring network access are restricted so as to not compromise security.

Implement strong firewall policy to monitor and control incoming and outgoing traffice based on rules. Consider both hardware and software firewalls for better protection.

You can implement some tools like Tenable Nessus which will scan your network for any vulnerability including out of date firmware or unpatched system. Also periodically review devices configuration specifically firewalls and WAF.

A SIEM solution is only as good as the information you can get out of it. Gathering all the log and event data from your infrastructure has no value unless it can help you identify problems and make educated decisions.

Uma ferramenta simples e poderosa de análise de vulnerabilidade que eu acho muito útil é o Nmap. É interessante poder fazer scanner em uma rede e conseguir identificar serviços de redes ativos e os sistemas operacionais dos dispositivos conectados. Como ferramenta de monitoramento mais uma vez o software livre para mim vem em primeiro lugar. O software do Nagios e do Zabbix nos dão recursos avançados de monitoramento de redes de forma gratuita e eficiente. Outra ferramenta de código aberto fantástica é o Snort, ele serve para detecção de intrusão na rede, como atividades maliciosas, ataques cibernéticos, malwares entre outras medidas de alerta.

You should have SOC team which using SIEM tools such as QRadar from IBM or Splunk, moreover you could automated even the action which will be taken once get any incident by using SOAR solution (Security Orchestration, Automation and Response ) such as IBM or Palo Alto SOAR.

Data has become more important for a company than anything. This is your new bloodline in essence. A reliable backup is more important than regularly backing it up. I would suggest a very reputable company, source, etc.

Para garantir a regularidade do backup eu acho útil usar uma estratégia de armazenamento na nuvem hoje em dia. Através das categorias de armazenamento do S3 ou discos do EBS e o serviço de EFS em multi-az da nuvem AWS é possível manter os dados de forma segura, disponível e escalável. A maioria destes serviços utilizam criptografia em repouso e em transito para garantir ainda mais uma camada de proteção aos dados. São várias soluções de backup eficientes e modernas. O poder da nuvem computacional. show de bola.

Backup database, virtual systems and isolated them after completing backup schedule help you prepare for the worst situations because you will difficult to know exactly what newest risks are existing in your system

Backups are essential for data availability during attacks or disasters. They enable swift data recovery post-cyberattacks like ransomware, reducing operational disruptions. Additionally, backups aid in disaster recovery, ensuring data integrity after events like natural disasters or hardware failures. By facilitating quick data restoration, backups uphold business continuity, minimizing downtime and maintaining productivity. They also safeguard against data corruption and ensure compliance with regulatory requirements, making them integral to a robust cybersecurity strategy.

Criar backups não é suficiente; é igualmente importante testá-los regularmente para garantir sua integridade e acessibilidade. Realizar verificações periódicas dos backups é essencial para identificar e corrigir quaisquer problemas antes que ocorram situações de emergência.

Na minha experiência enfrentei dificuldades para envolver os gestores de outras áreas a adotar uma postura mais séria em relação a segurança da informação principalmente em pequenas empresas. Acho que a resistência acontece por causa das mudanças de comportamento e de consciência que são necessárias no ambiente e isso as vezes gera um certo desconforto. Acredito que com uma documentação bem estruturada junto com uma comunicação efetiva entre os stakeholders é possível ter um controle mais abrangente do ambiente de TI e uma visão mais ampla das políticas de segurança adotadas.

Review your security policies if you have them, and review industry standard policies to determine what you’re missing or lacking. You can also reach out to other organizations and collaborate and how they are handling emerging threats.

It is essential to develop and regularly update an incident response plan to effectively respond to and mitigate cybersecurity incidents. Encrypt sensitive data both in transit and at rest to prevent unauthorized access even if the data is intercepted. Keep all software, including operating systems, applications, and security tools, up to date with the latest patches and updates to fix vulnerabilities.

Networks should be designed with security in mind, It is very straining to make changes to vulnerable topologies in production. As this will require multiple maintenance windows and possibly even network down time. That is why it is important to hire a network security engineer and network architects who use secure best practices when designing your network

Dependendo do tamanho e complexidade da empresa pode ser necessário um alto nível de expertise em segurança cibernética. Nestes casos podemos acionar um MSP (Managed Service Provider), que em português pode ser traduzido como "Fornecedor de Serviços Gerenciados". Um MSP é uma empresa que fornece serviços de TI de forma terceirizada, gerenciando e assumindo a responsabilidade por determinadas funções de tecnologia da informação de uma organização. Isso pode incluir serviços como suporte técnico, monitoramento de sistemas, backup de dados, segurança cibernética, entre outros.

You should have internal security team to produce security assessment periodically, also you deal with trusted and expert company to conduct penetration testing / security assessment and try to immediately resolve any gap if any.

Integrating threat intelligence into your network security strategy is vital. Use threat intelligence feeds to stay informed about the latest cyber threats and vulnerabilities. This information helps you anticipate potential attacks and take preemptive measures. Additionally, participate in information-sharing communities relevant to your industry. By staying updated on emerging threats and learning from the experiences of others, you can enhance your security posture and respond more effectively to new challenges.

All the mentioned actions are of great importance and deserve attention. However, raising awareness and training users is an essential action that should not be overlooked. A structure can be compromised if one of its users falls victim to social engineering attacks.

Meu insight sobre segurança da informação se resume em 10 importâncias: 1. A Importância de proteger os dados confidenciais 2. A Importância de desenvolver uma cultura de segurança 3. A importância de manter os sistemas atualizados 4. A importância de usar senhas fortes e exclusivas 5. A importância de ter cuidado com o que você clica e abre 6. A importância de ter backups regulares 7. A importância de estar ciente das últimas ameaças 8. A importância de ter um plano de resposta a incidentes 9. A importância de ter um treinamento regular de segurança 10. A importância de ter uma equipe de segurança dedicada

I really divide this into two factors, the technical ones that you should improve and keep in constant monitoring and the people! Don't stop to give awareness and training to the Human firewall