A startup’s cybersecurity strategy should protect the systems and information that keep the business running, with a named owner coordinating practical controls and incident response. You do not need a dedicated security department to begin: assign responsibility, map your most important assets, reduce account and data risks, and revisit priorities as the company changes. CISA’s small-business resources are a useful starting point, not a universal compliance checklist.
1. Assign responsibility and identify what matters most
Name an accountable business owner for cybersecurity. A founder or operations lead can coordinate the work even when an IT provider handles technical implementation. Make clear who approves priorities, who manages access and updates, and who makes decisions during an incident.
Start with a practical inventory rather than assuming there is one assessment method that fits every startup. List the services and assets your business depends on:
- Essential business functions and the systems that support them.
- Important accounts, devices, cloud applications, and suppliers.
- Customer, employee, financial, and other sensitive data, along with where it is stored or processed.
- Administrative and remote-access paths that could expose multiple systems.
Prioritize anything whose compromise could halt operations or expose sensitive information. CISA’s small-business resource hub points to material on security roles, incident planning, SaaS configuration, and selecting secure technology.
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2. Protect accounts with strong access controls
Require multifactor authentication (MFA) wherever important services support it. Begin with administrator accounts and staff who handle sensitive data, then cover email, file storage, remote access, and other services that could provide a route into the business. Use the strongest MFA option each account supports. CISA’s MFA guidance ranks the methods it describes as follows:
| Method | CISA’s relative ranking on its page | What to consider |
|---|---|---|
| Physical security key | Strongest listed option | Check that the account and device support the key you select. Plan how authorized users can recover access if a key is lost. |
| Authenticator app with number matching | Next in the listed order | Confirm the service supports this option and that staff know how to use it. |
| One-time codes | Listed below number matching | Review how codes are delivered and how account recovery works. |
| Biometrics in combination | Listed among the lower-ranked methods | Availability and implementation depend on the account and device. |
| Text or email codes | Lowest among the methods listed | Use when stronger supported options are unavailable, rather than treating all MFA methods as equally protective. |
This is CISA’s comparison of the methods on its page, not a guarantee that every service supports each one. A physical FIDO security key, such as the type CISA identifies with YubiKey as an example, is an optional way to use phishing-resistant MFA—not a substitute for access controls or recovery planning.
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3. Keep devices and data resilient
Make updates, backups, encryption, and phishing awareness part of normal operations. Assign an owner to routine software updates and another person, where feasible, to check that backups are completing and can be restored. Teach staff how to recognize suspicious messages and how to report them promptly. Encrypt business data in ways appropriate to the systems and information you handle.
CISA includes these measures among its small-business cybersecurity practices. There is no one backup retention schedule, recovery-time target, or encryption configuration established for every startup by that guidance; set them according to the business’s data, operational needs, and applicable obligations.
4. Make monitoring and incident response actionable
Logging is useful only if someone can review the records and they are protected against tampering or deletion. Decide which systems produce important logs, who may access and review them, how that access is secured, and how long records are kept under company policy and applicable requirements. CISA’s logging guidance recommends defined procedures, secure access, retention policies, and named incident-response roles.
Prepare an incident plan that identifies who coordinates decisions and who handles the work across technology, communications, legal issues, and business continuity. In a small company, a few people may cover several roles; record the responsibilities and contact details so staff are not deciding ownership in the middle of an incident. CISA’s small-business resources include incident-response planning material.
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5. Assess cloud services and other suppliers
A hosted service can be essential to your business while also handling sensitive data or holding access to important systems. Assess critical providers—including collaboration, customer relationship management, and payment services—according to the role they play and the access you grant them. CISA’s vendor assessment guidance offers structured questions for small and medium-sized businesses.
For each critical supplier, ask:
- What company data does the provider handle, and where is it used?
- How does the provider control access to your information and account?
- What security practices are in place, and how will the provider notify you of an incident?
- How can the service or its data be recovered after a major cyber incident?
- What would your business do if the service were unavailable or you needed to move away from it?
Choose questions and evidence that fit the service’s criticality, data sensitivity, and access. CISA’s guidance supports structured assessment; it does not make a particular certification or questionnaire legally mandatory for every startup.
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Review priorities when you add sensitive data, adopt a new cloud service, expand the workforce, make customer security commitments, or take on a new regulatory or contractual requirement. A fixed review interval is not established for every startup by the cited guidance. Set a cadence that fits your risk and operating rhythm, and also review after meaningful changes or incidents.
CISA has noted that small businesses face cyber risk: in a 2021 article, the agency reported that cybercrime cost small businesses $2.4 billion that year and described them as three times more likely to be targeted by cybercriminals. Those are historical figures attributed to CISA, not a current forecast. See its 2021 article.
When to get outside help
If your team lacks the capacity to implement or monitor controls, a managed IT or cybersecurity provider may help. Evaluate the provider as you would another critical supplier: define the work, the level of access it needs, how it handles incidents, and how it supports recovery. CISA’s small-business and supplier resources can help frame those discussions: small-business resources and vendor assessment guidance.
Security expectations also extend to technology providers. CISA’s small-and-medium-business page states: “Every technology provider must take ownership at the executive level to ensure their products are both secure by design and secure by default.” See CISA’s small and medium businesses page.
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