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1Scan for outdated or missing drivers - takes under a minute2Clear out junk files and repair common Windows errors3Fix the driver behind crashes, sound loss and screen glitchesDo not assume the threat is harmless just because every file still opens. Preserve the original demand and technical evidence, alert the people responsible for security and leadership, and arrange a qualified assessment for unauthorized access or data theft. A criminal’s claim is not proof that data was copied, either. Treat both possibilities as unconfirmed until evidence supports one of them.
For an organization, use its incident-response plan, involve legal and privacy staff early, report through appropriate United States channels, and make no payment or negotiation decision before obtaining case-specific incident-response and legal advice. Whether anyone must be notified depends on what information was involved, who was affected, where they are located, and the organization’s contractual and regulatory duties.
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What the absence of encryption does—and does not—tell you
Traditional ransomware encrypts files and displays a demand for payment. Extortion can also happen without that visible step. The Cybersecurity and Infrastructure Security Agency (CISA) states in its #StopRansomware Guide: “In some cases, malicious actors may exfiltrate data and threaten to release it as their sole form of extortion without employing ransomware.” In that situation, the attacker may threaten publication, sell the information, contact customers, or pressure an organization publicly while leaving files unchanged.
That possibility does not establish that the sender entered your systems or obtained anything. Some messages are copied from public breach reports, sent as mass scams, or built around guesses. The correct response is therefore an evidence-preservation and investigation process, not automatic acceptance or dismissal of the claim.
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- No encrypted files: this removes one sign of a conventional ransomware event, but it does not rule out stolen data, compromised accounts, or unauthorized access.
- A convincing message: technical details, screenshots, or a sample file can be useful evidence, but they still require verification.
- A lack of visible symptoms: normal logins and open documents do not prove that an attacker was absent.
The first hour: protect evidence and avoid making the situation worse
Keep the demand in its original form
Save the complete email, message, chat, or letter. Retain the original sender address, account name, timestamps, subject line, attachments, embedded links, cryptocurrency wallet details, callback instructions, screenshots, and every response already sent. Preserve the message in the system where it arrived as well as in an approved evidence repository. If mail headers or message metadata are available, retain them without editing.
Do not delete the message, rename or alter attachments, or casually forward a suspicious file to colleagues. Forwarding can spread malware, change metadata, or make it harder to determine who accessed the material. Use your organization’s security procedure for quarantining and sharing suspicious content. A private individual who lacks a procedure should avoid opening attachments or visiting links and should ask a reputable security professional how to provide the original safely.
Record a contemporaneous timeline
Write down when the demand arrived, who saw it, which accounts or systems were mentioned, what the sender claimed to possess, what deadline or payment amount was given, and any action taken after receipt. Include whether anyone clicked a link, opened an attachment, supplied credentials, transferred money, or replied. Record facts separately from assumptions; “the sender claims to have copied payroll data” is different from “payroll data was stolen.”
Do not wipe, reset, or power off systems on your own
Deleting accounts, reinstalling systems, running cleanup tools, or restoring backups can destroy evidence. Abruptly powering off a computer can also remove volatile information that a qualified responder might need. Follow the organization’s incident plan. If there are signs of active compromise, such as an account being used from an unfamiliar location, suspicious remote-control activity, or unauthorized transfers, the security team may isolate affected systems according to that plan. Isolation and evidence collection should be coordinated so that an urgent containment step does not erase useful information.
Activate an organizational response
Notify the right internal groups
Send the alert through the established incident channel rather than relying on an informal group chat. CISA identifies information-technology and security staff, managed security providers, cyber-insurance providers, and leadership as relevant stakeholders. Add legal, privacy, communications, human resources, and business owners when the suspected data or systems affect them.
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Ask one incident lead to maintain the timeline, assign tasks, control communications, and approve evidence handling. Limit distribution of the demand to people who need it; broad forwarding increases the risk of accidental disclosure and inconsistent statements. Employees should know where to report related messages and should not negotiate independently.
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If you have no security team, preserve the message and contact your email, hosting, or managed-technology provider using a verified support channel. Do not use a telephone number or web address supplied only in the demand. Ask a qualified incident-response or digital-forensics professional for help if the message identifies internal files, includes nonpublic samples, or follows a suspicious login or payment event. Keep a written record of what the provider says and which logs it can retain.
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Start with the evidence most likely to disappear
Logs often have short retention periods. Ask administrators to preserve identity-provider, email, VPN, endpoint, firewall, cloud-storage, database, and file-access records before normal rotation removes them. Preserve malware samples, indicators, suspicious scripts, authentication records, and relevant cloud audit trails. CISA’s guidance discusses system images and memory captures; those tasks can require specialist tools and should not be attempted by an untrained user on a live system.
A responder should establish the time window, initial access route, accounts used, systems reached, files or databases viewed, and whether information was staged or transferred. The investigation should distinguish an observed event from an inference. For example, a large outbound transfer may be suspicious, but it is not automatically proof that the threatened customer database was copied.
Look for corroborating signs
| Question | Evidence to preserve or examine | What it can establish |
|---|---|---|
| Was an account compromised? | Authentication logs, password-reset records, multifactor-authentication prompts, new devices, and unusual locations | Whether credentials were used in an unexpected way and when |
| Did someone reach internal systems? | Remote-access logs, VPN records, endpoint alerts, administrative actions, and cloud audit events | Which systems and accounts were accessed |
| Was information collected? | File-access events, database queries, archive creation, staging directories, and unusual compression activity | Whether data was gathered for possible removal |
| Was information transferred? | Network-flow records, proxy logs, cloud egress records, and storage-provider download history | Whether a transfer occurred, its timing, and its destination |
| Is the message connected to the environment? | Unique file samples, screenshots, internal terminology, or details that were not public | Clues to authenticity, while still requiring independent verification |
Do not infer that every item named in the threat was stolen. Match each claim to an account, system, access event, or file record. If the organization cannot perform this work reliably, engage a qualified incident-response or forensic provider and preserve the original evidence before handing over copies.
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Report the threat through appropriate channels
CISA advises organizations to report and request assistance from CISA, a local FBI field office, or the FBI Internet Crime Complaint Center (IC3). IC3 describes itself as the FBI’s central hub for reporting cyber-enabled crime and says people should file even when they are uncertain whether a complaint qualifies. IC3 also notes that it cannot guarantee a direct response to every submission.
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| Channel | When it is useful | What to prepare |
|---|---|---|
| CISA | Operational assistance, coordination, and guidance for eligible organizations | The original demand, timeline, affected systems, indicators, and a clear statement of what is confirmed versus alleged |
| Local FBI field office | Direct law-enforcement contact for a serious cyber-enabled crime or threatened release | Contact details, financial demands, sender information, evidence copies, and any immediate safety or business impact |
| IC3 | A centralized online report for cyber-enabled crime, including cases where qualification is uncertain | A factual narrative, dates, amounts, wallet addresses, message files, domains, accounts, and known losses or risks |
Use the current official CISA and FBI reporting pages to confirm submission methods at the time you file. Include the original threat, when it arrived, what the sender demanded, the accounts and systems named, and the investigation’s confirmed and unresolved findings. Do not report that data was stolen unless the evidence supports that conclusion. Preserve the report confirmation and any case number with the incident record.
Decide how—and whether—to communicate with the sender
Do not improvise a negotiation
Every reply can reveal information, confirm that an address is monitored, create a new social-engineering opportunity, or alter evidence. Route any proposed response through the incident lead and legal counsel. A short acknowledgment is not required simply because the sender imposes a deadline. If communication is necessary for safety, evidence collection, or a controlled negotiation, use an approved account and retain the complete exchange.
Understand what payment can and cannot do
FBI and CISA guidance discourages paying ransom and states that payment does not guarantee that files will be recovered. That guidance addresses ransomware broadly; an extortion-only demand may involve different facts, such as an alleged data copy without encryption. It would be misleading to promise that payment will stop publication, prevent resale, or end contact. It can also create sanctions, legal, accounting, and insurance issues.
Do not make a payment, transfer cryptocurrency, or promise a payment date based only on the sender’s instructions. Obtain case-specific advice from qualified incident-response and legal advisers. Counsel can assess sanctions and other legal restrictions, while responders can test whether the claim is supported by technical evidence and whether containment is still needed.
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Assess notification and legal duties
If the investigation identifies unauthorized access to or exposure of personal, regulated, contractual, or confidential information, involve legal and privacy leads promptly. Notification duties vary with the location of affected people, the type of information, the organization’s sector, contracts, and applicable deadlines. There is no universal answer that can be determined from the wording of an extortion message.
Maintain a written decision record: what data categories were considered, which systems were examined, what evidence was found, what remains unknown, and why the organization concluded that notice was or was not required. Coordinate public statements with legal, communications, insurers, and law enforcement where appropriate. Avoid saying that no breach occurred merely because files were not encrypted; if the evidence is incomplete, describe the investigation and its limits accurately.
If compromise is confirmed: contain, eradicate, and recover carefully
Contain without destroying evidence
Follow the incident-response plan to isolate affected accounts, endpoints, servers, and cloud workloads. Preserve images, memory captures, logs, malware, and indicators as directed by qualified responders. Reset credentials and revoke sessions in a controlled sequence after responders understand how the attacker entered and which accounts were used. Closing one account without addressing the access path can leave the environment exposed.
Restore only after the environment is understood
Do not reconnect systems or restore from backups until responders determine that the environment is safe. CISA advises restoring from offline, encrypted backups, prioritizing critical services, and avoiding reinfection during recovery. Restoration should include validation of identity controls, endpoint protection, network segmentation, logging, and administrative access—not just reopening files.
Verify every restored service
- Confirm that the backup predates the compromise or that its contents have been examined.
- Check that privileged credentials, service accounts, keys, and tokens have been rotated where necessary.
- Monitor restored systems for renewed suspicious authentication, data staging, or outbound transfer.
- Record which services were restored, by whom, from which backup, and with what validation result.
If the investigation finds no evidence of access
A well-documented investigation that finds no evidence is a meaningful result, but it is not proof that a negative claim was impossible. Keep the demand, logs, preservation records, provider reports, and decision notes for the period required by policy, contracts, and law. Continue monitoring accounts and systems for signs that appear later, especially when relevant logs were unavailable or had already expired.
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Close the incident only after the incident lead records the scope reviewed, the evidence retained, unresolved limitations, reporting decisions, and who approved closure. If the sender continues to threaten publication, preserve each new message as a separate event and update the appropriate report rather than restarting the investigation from scratch.
How to choose outside incident-response or forensic help
Organizations that lack the necessary skills should consider a qualified provider. Selection is a capability and evidence-handling decision, not a popularity contest. Ask candidates to explain:
- Which incident-response, forensic, cloud, identity, and malware capabilities they provide directly.
- How quickly they can start, who is on call, and how they handle work across time zones.
- Experience with the organization’s sector, data types, systems, and jurisdictions.
- How they preserve originals, calculate and record evidence integrity, control access, and transfer findings.
- What the initial scope includes, what costs are hourly or fixed, and what events trigger additional work.
- How they coordinate with legal counsel, cyber-insurance providers, regulators, law enforcement, and internal staff.
- What written deliverables they provide, such as a timeline, affected-asset list, indicators, containment plan, and notification analysis support.
Have counsel review engagement terms when privilege, confidential information, or regulatory reporting may be involved. A provider should receive copies or forensic images where possible, while original evidence remains controlled and documented.
Prepare offline backups before the next incident
An external drive or other storage device is a preparedness measure, not a remedy for the current extortion message. CISA recommends offline, encrypted backups and regular testing of their availability and integrity.
| Backup decision | Questions to answer |
|---|---|
| Capacity | Can it hold the critical systems and data, including version history and growth? |
| Encryption | Is encryption enabled and are recovery keys protected separately from the backup device? |
| Compatibility | Can the organization restore the data to the operating systems, cloud services, and hardware it will use? |
| Offline control | Is the device disconnected or otherwise inaccessible to ordinary administrator credentials when backups are not running? |
| Durability and custody | Is there a protected storage location, an inventory, and a process for replacing failing media? |
| Testing | When was a restore last completed, which files or services were checked, and who recorded the result? |
Test restoration, not merely backup completion. A backup that cannot be decrypted, is infected, lacks application dependencies, or has an unknown owner will not support recovery. Keep more than one recovery path when practical, separate backup administration from everyday credentials, and document the order in which critical services should return.
Common mistakes to avoid
- “Nothing is encrypted, so we can ignore it.” Data theft and account compromise can occur without encryption.
- “The attacker named an internal file, so the breach is confirmed.” Verify the detail against access and transfer evidence.
- Deleting the message or rebuilding machines immediately. This can remove the evidence responders need.
- Letting multiple employees reply. Uncontrolled contact can disclose information and produce contradictory statements.
- Paying to meet an arbitrary deadline. Payment does not guarantee recovery or confidentiality and requires legal review.
- Announcing either “no breach” or “all data was stolen” too early. State what is established and what remains under investigation.
- Restoring from backups before containment. Reconnecting an unsafe environment can reinfect restored systems.
- Waiting for certainty before reporting. IC3 accepts reports even when a filer is unsure whether the complaint qualifies.
A practical decision sequence
- Preserve the original demand, headers, attachments, links, wallet details, timestamps, and all prior responses.
- Open the incident plan and notify security, IT, leadership, legal or privacy staff, and relevant existing providers.
- Preserve short-retention logs and volatile evidence; use qualified specialists for imaging or memory capture.
- Investigate account use, remote access, staging, file access, and outbound transfer without treating allegations as facts.
- Report to CISA, a local FBI field office, or IC3 using the current official submission methods.
- Route communication and any payment proposal through incident-response and legal advisers; consider sanctions and other legal restrictions.
- Assess notification duties based on the affected data, people, contracts, sector, and jurisdictions.
- If compromise is confirmed, contain it, eradicate the access path, and restore only from validated offline encrypted backups.
- Document findings and limitations, continue monitoring, and test backup restoration as a lasting preparedness improvement.
The central rule is simple: an unencrypted file is not evidence that nothing happened. Preserve first, investigate with the right expertise, report factually, and make legal, communications, payment, and recovery decisions from verified evidence rather than from the sender’s claim or the absence of visible damage.
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