Why do law firms need cybersecurity?

Law firms handle highly sensitive client information on a daily basis. From personal identifications to financial records and confidential business dealings, law firms are a goldmine for cybercriminals. As technology continues to advance, so do the threats against law firms. Cyber attacks can cripple a law firm’s ability to serve clients, damage its reputation, and lead to serious legal and financial consequences. Having a comprehensive cybersecurity strategy in place is critical for all law firms today.

What are the cybersecurity threats facing law firms?

Law firms face a wide range of cybersecurity threats that can put client data and the firm itself at risk. Some of the top threats include:

  • Phishing attacks: Criminals send emails posing as trusted contacts to trick users into clicking links or opening attachments containing malware. This can give attackers a foothold into the firm’s network.
  • Ransomware: Malicious software that encrypts data until a ransom is paid. This can lead to disruption of operations and loss of access to case files.
  • Data breaches: Hackers exploiting vulnerabilities to steal sensitive client information and then either leak or sell the data online.
  • Insider threats: Employees intentionally or accidentally mishandling data in violation of security policies.
  • Cloud risks: Misconfigurations or lack of controls around cloud apps where client data is stored.
  • BYOD vulnerabilities: Lack of security around personally-owned devices used to access firm networks and files.

Law firms handle so much confidential data that hackers see them as lucrative targets. Even small firms risk major fallout from any type of cyber attack.

What are the consequences of poor cybersecurity for law firms?

The implications of a cyber attack or data breach can be severe for law firms. Some potential consequences include:

  • Reputational damage: Clients lose trust in a firm’s ability to protect sensitive data, resulting in loss of business.
  • Legal liability: Law firms may face lawsuits, sanctions and regulatory investigations if client data is compromised.
  • Financial costs: Ransomware payments, notification costs, lawsuit settlements and lost billings can add up quickly.
  • Business interruption: Loss of access to systems and files makes it difficult or impossible for attorneys to work on cases.
  • Breach of ethics: Law firms are ethically obligated to protect client confidentiality and can face ethics charges.

These risks pose an existential threat to firms who lack adequate cybersecurity protections. The fallout from a single major incident can permanently damage a firm’s standing and profitability.

What cybersecurity measures should law firms implement?

Building a robust cybersecurity program requires focusing on key areas to safeguard client data and the firm’s IT infrastructure. Recommended security measures include:

  • Access controls – Limit access to sensitive data to only those who require it for their role.
  • Encryption – Secure data at rest and in transit using encryption methods like TLS for emails.
  • Strong passwords – Enforce complex passwords and multi-factor authentication for all users.
  • Secure remote access – Use VPNs and zero trust models to protect remote access.
  • Incident response plan – Have an IR plan in place with defined roles and procedures.
  • Backup procedures – Maintain air-gapped backups to recover from ransomware.
  • Security awareness training – Educate all employees on security best practices.
  • Third-party risk management – Vet cloud apps and vendors for stringent security.

Additionally, law firms should conduct regular risk assessments, penetration testing and cybersecurity audits to identify and address vulnerabilities proactively. Ongoing security monitoring and patching is essential as well. Adopting frameworks like the NIST Cybersecurity Framework provides structure for building a robust security program.

How can technology help secure law firms?

Law firms can leverage a number of important technologies to assist in securing critical data and systems:

  • Data loss prevention – DLP tools prevent unauthorized sharing and exfiltration of sensitive files.
  • Intrusion detection – IDS/IPS monitors networks for malicious activity and stops attacks.
  • Endpoint detection & response – EDR software provides visibility into endpoints and automated threat response.
  • Email security – Filter out spam/phishing emails and sanitize attachments.
  • Cloud access security broker – CASBs secure use of SaaS apps and cloud services.
  • SIEM – Security info & event management tools aggregate and analyze security alerts.
  • Next-gen firewall – NGFWs go beyond basic firewalls to monitor and block advanced threats.

The right mix of modern security tools tailored to a law firm’s needs and risk profile is essential to building a capable cyber defense. Law firms should enlist an experienced IT/security service provider to advise on selecting and implementing technology safeguards.

What cybersecurity best practices should lawyers follow?

Lawyers themselves play a crucial role in protecting client data. Best practices lawyers should follow include:

  • Using strong passphrases for all accounts and multi-factor authentication when available.
  • Scrutinizing emails to identify phishing attempts.
  • Encrypting laptops, external media and sensitive files.
  • Only using trusted Wi-Fi networks and VPNs when on public networks.
  • Locking devices when unattended.
  • Never sharing account credentials or client data over unsecured channels.
  • Reporting suspicious activity immediately to IT security teams.
  • Undergoing any required security awareness training.
  • Asking vendors tough questions about their cybersecurity measures.
  • Carefully reviewing cloud apps and services before adopting them.

Following security best practices reduces the risk of lawyers unintentionally exposing sensitive data through their everyday actions.

What role can insurance play in managing cyber risk?

In addition to technical and administrative controls, cyber insurance can help law firms manage their cyber risk exposure. Key benefits include:

  • Cost recovery – Policies can cover ransoms, legal costs, liability payments and other expenses stemming from an incident.
  • Business interruption – Lost income due to downtime after an attack may be covered.
  • Incident response – Insurers provide panels of third parties to assist with forensic analysis, PR, victim notification and other services.
  • Litigation benefits – Provides defense costs coverage for potential lawsuits by clients and regulators.
  • Reputational benefits – Insurance can demonstrate the firm is taking cyber risk seriously.

However, policies vary greatly in their definitions, exclusions, sublimits and other provisions. Law firms should work closely with experienced cyber insurance brokers to secure coverage tailored to their specific risks.


Law firms cannot afford to overlook cybersecurity given the highly sensitive client data they handle and growing array of threats targeting them. By implementing layered technical and administrative safeguards, training staff, and transferring some risk through cyber insurance, law firms can mitigate cyber incidents. With robust cyber protections in place, law firms can focus on serving clients while safeguarding their information, assets and reputation.