IT Security · RANSOM

Preparing your company for ransomware in 2026: current threats and defense strategies

Remote Admin Security Team·December 18, 2025·6 min read

In 2026, ransomware will still be an attack on the business, not on files. The best defense combines phishing-resistant MFA, strict identity hygiene, segmentation, EDR plus logging, and backups with tested restores. That limits the damage even when someone does get in.

What does ransomware look like right now, and what does that tell us about 2026?

The trends from the latest major reports are fairly clear-cut:

  • For small companies, ransomware is an exceptionally common part of incidents: the 2025 DBIR states outright that ransomware is a component of 39% of breaches at larger organizations, and as much as 88% among SMBs.
  • In actual incident response (IR) practice, ransomware makes up a big share of the work: Mandiant reports that ransomware events accounted for about 21% of all its investigations in 2024.
  • The economics of an attack remain brutal: Sophos reports a median ransom payment of $1M (2025), and an average cost of recovering operations “without paying” of $1.53M. On top of that, only 54% of organizations used backups to restore encrypted data, and 49% paid the ransom.

The takeaway for 2026 (a working forecast based on this data): attackers will lean even harder on time pressure and business continuity, and companies will win not by “not getting breached,” but by their ability to isolate and recover quickly.

What are the most common entry points in ransomware attacks?

If you want to defend effectively, you need to defend the “entry point,” not just the “encryptor.”

Mandiant states directly that in ransomware-related intrusions (2024), the most common initial vectors were:

  • brute force (including password spraying, RDP, VPN, default passwords),
  • followed by stolen credentials and exploits (each at 21% in their dataset), then “prior compromise” and third-party compromise.

What matters operationally: Mandiant also notes that in ransomware cases, attackers themselves “notify” the victim in a large share of cases (the extortion model), and the median dwell time for ransomware-related intrusions is 6 days.

That means one thing: you have very little time. Defense has to work automatically — not “whenever someone notices.”

What will be most dangerous about ransomware for businesses in 2026?

The most painful part isn’t the encryption algorithms themselves, but three layers of pressure:

  1. Extortion through availability
    Attacks are designed to halt sales, production, and customer service. Time is currency.
  2. Double and triple extortion
    Encryption plus the threat of publishing data, sometimes with added pressure on customers and partners. ENISA describes the continued evolution away from “pure encryption” and toward data-driven extortion. (securitydelta.nl)
  3. Attacks on identity and trust
    Compromise of privileged accounts, M365/Google Workspace takeovers, use of stolen passwords and tokens. In practice, defending the “network” without defending “identity” today is like locking the door while leaving the window open.

What does a defense strategy that actually reduces risk in 2026 look like?

A good strategy doesn’t assume “they won’t get in.” It assumes they’re trying every day, and your job is to:

  • make entry harder,
  • detect quickly,
  • cut off the spread,
  • restore operations.

Below is a practical, verifiable set of controls.

How do you build “identity-first” protection that blocks most real-world entry points?

This is the foundation, because brute force and stolen credentials show up over and over in IR data.

The rollouts with the best return relative to cost:

  • MFA everywhere, but smartly: prioritize admin accounts, VPN, email, management consoles, RDP, and financial systems.
  • Phishing protection: wherever possible, move to phishing-resistant methods (e.g., hardware keys/passkeys) at least for critical roles.
  • PAM and role separation: an admin shouldn’t use the same account for email and for managing servers.
  • Strict brute-force lockouts: attempt limits, lockouts, geo-blocking, and enforced strong passwords as a transitional step.
  • Control over MFA enrollment: Mandiant highlights the importance of verifying first-time MFA enrollment and locking out after repeated failures.

How do you limit ransomware spread once an attacker is already inside?

This is the area that usually decides whether you end up with an “incident” or a “catastrophe.”

  • Segmentation: separate workstations, servers, backups, OT/IoT, and test environments.
  • Limiting lateral movement: block unnecessary traffic, especially RDP/SMB/WMI between segments.
  • Hardening AD/Entra ID: because compromise of a privileged identity is often the critical turning point.
  • Minimizing privileges: “everyone’s a local admin” is a recipe for rapid escalation.

In practice, even simple segmentation combined with limited privileges can turn an attack into a problem confined to a handful of hosts.

What logs and detections do you need to catch an attack before encryption happens?

Because median dwell time in ransomware can be short, detection has to be built on signals that appear early.

The minimum that makes sense for SMB and mid-market companies:

  • EDR/XDR on endpoints and servers: behavior-based detection, not just signatures.
  • Identity alerts: unusual logins, addition of an admin account, MFA resets, mass login attempts.
  • Centralized logging (even a lightweight version): so you can answer “who, when, from where.”
  • Exfiltration detection: because data-based extortion keeps growing in importance. (securitydelta.nl)

How do you build backup and restore capability so you don’t end up paying the ransom?

The numbers here are sobering: Sophos shows that use of backups to restore encrypted data dropped to 54%, while 49% of victims pay the ransom.

That’s why backup in 2026 isn’t “a copy” — it’s a restore system:

  • The 3-2-1 rule (3 copies, 2 media types, 1 offsite) plus a modern addition: an immutable or logically separated copy.
  • Separating the backup domain: backups can’t be managed from the same accounts that control AD and servers.
  • Restore testing: on a regular cycle, stopwatch in hand: RTO (time) and RPO (data loss).
  • Service priorities: what you restore first to keep the business running (e.g., ERP/CRM/payments).

If you have backups but no rehearsed restore process, you effectively have a lottery ticket.

How do you prepare a ransomware response plan so you’re not improvising on the worst day of the year?

A ransomware IR (incident response) plan should be short and usable under stress:

  • who makes the decisions (IT, board, legal, PR),
  • how you isolate: accounts, network, EDR containment,
  • how you preserve evidence,
  • how you communicate with customers and partners,
  • when you bring in an external IR team.

A very practical element for 2026: decide the policy question of “do we pay” ahead of time. Because once the pressure hits, rational thinking disappears. And the costs are real: the median ransom is still $1M, and the cost of recovering operations without paying, per Sophos data, is $1.53M.

What does a sensible 30/60/90-day “ransomware-ready” rollout plan look like?

0-30 days: the biggest return, fastest

  • MFA everywhere for admins, email, VPN, and consoles
  • brute-force lockouts and cleaned-up privileged accounts
  • EDR on servers and workstations (at least the critical ones)
  • basic segmentation and restricted RDP/SMB
  • backup with an offsite copy plus a first restore attempt

31-60 days: resilience against spread and extortion

  • separation of admin/user accounts, initial PAM
  • centralized logging (identity, endpoints, servers)
  • playbooks: isolation, restore, communication
  • AD/Entra hardening and MFA enrollment controls

61-90 days: operational maturity

  • immutable/write-once backups and regular RTO/RPO tests
  • exfiltration and traffic anomaly detection
  • a board-level tabletop exercise (“data leak + encryption” scenario)
  • an agreement or retainer with an external IR provider (if it makes sense at your scale)

What 7 decisions most often determine whether ransomware ends as an “incident” or a “catastrophe”?

  1. Do you have MFA, and do you protect privileged accounts.
  2. Is brute force against VPN/RDP genuinely blocked.
  3. Do you have EDR, and can you isolate hosts within minutes.
  4. Is your network segmented, with minimal privileges.
  5. Is your backup separated and tested.
  6. Do you have logs and alerts for identity events.
  7. Do you have an IR plan and a rehearsed decision for “what we do when…”