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Block malicious emails with CIRCL Hash Lookup and AI

Swiftask automates email analysis by querying the CIRCL database. Identify threats and corrupted files before they ever reach your users.

Result:

Boost your security posture without overloading your SOC teams, thanks to intelligent automation.

The threat of infected attachments is skyrocketing

Email attacks remain the primary vector for breaches. Manually verifying every received file is impossible given daily volumes. Traditional security solutions often miss novel threats or require complex maintenance.

Main negative impacts:

  • Insufficient analysis time: Security teams are overwhelmed by alerts, leading to critical delays in response during real incidents.
  • High phishing risk: A single undetected malicious file can compromise your entire information system.
  • IT team burnout: Manual threat handling prevents security experts from focusing on high-value tasks.

Swiftask integrates CIRCL Hash Lookup to automatically verify the hash of every attachment. The AI decides instantly whether to block, isolate, or allow the email.

BEFORE / AFTER

What changes with Swiftask

Manual and reactive analysis

An employee receives a suspicious email. They report it to IT. The analyst downloads the attachment, calculates the hash, and manually consults threat databases. By the time the threat is confirmed, it has often already been opened by others.

Automated analysis with Swiftask

Upon receiving the email, Swiftask extracts the attachment's hash. It instantly queries CIRCL Hash Lookup. If a match is found, the email is moved to quarantine and the security team is alerted in under a second.

Deploy your security filter in 4 steps

STEP 1 : Configure the connector

Integrate CIRCL Hash Lookup into Swiftask to enable automatic querying of the threat database.

STEP 2 : Define filtering rules

Configure risk thresholds and actions (block, alert, isolate) based on the lookup results.

STEP 3 : Automate the email flow

Connect your mail server to Swiftask so that every attachment is analyzed the moment it is received.

STEP 4 : Monitoring and audit

Track all blocked intrusion attempts via the Swiftask dashboard and adjust alert sensitivity as needed.

Advanced detection capabilities

Swiftask analyzes file hashes, sender context, and email body content for a multi-layered detection approach.

  • Target connector: The agent performs the right actions in circl hash lookup based on event context.
  • Automated actions: Automatic hash extraction (MD5, SHA-1, SHA-256). Real-time comparison with the CIRCL database. Automatic actions on infected emails. Incident reports generated automatically for the SOC.
  • Native governance: The integration ensures high availability and fast response, which is essential for countering Zero-Day attacks.

Each action is contextualized and executed automatically at the right time.

Each Swiftask agent uses a dedicated identity (e.g. agent-circl-hash-lookup@swiftask.ai ). You keep full visibility on every action and every sent message.

Key takeaway: The agent automates repetitive decisions and leaves high-value actions to your teams.

Operational benefits for security

1. Drastic reduction in false positives

Cross-referencing with CIRCL allows for precise validation based on reliable threat intelligence data.

2. 24/7 protection

Your emails are analyzed instantly, even outside business hours, without human intervention.

3. Simplified compliance

Every analysis is logged, facilitating security audits and proof of protection measures.

4. Effortless scalability

Handle thousands of emails per day without needing to increase the size of your IT team.

5. Accelerated incident response

Alerts are contextual and ready to be processed, reducing the mean time to remediation (MTTR).

Security and privacy

Swiftask applies enterprise-grade security standards for your circl hash lookup automations.

  • Secure local analysis: Only file hashes are sent for verification, ensuring the confidentiality of sensitive data.
  • Robust integration: Encrypted communication between Swiftask and CIRCL services.
  • Data governance: You retain full control over filtering policies and actions taken.
  • GDPR compliance: Automated processing is designed to respect privacy and data protection standards.

To learn more about compliance, visit the Swiftask governance page for detailed security architecture information.

RESULTS

Performance of your email protection

MetricBeforeAfter
Detection timeSeveral hours (manual)Less than 2 seconds
Volume of threats handledLimited by human teamUnlimited (automated)
Human error rateHigh (fatigue)Almost zero
Cost per email processedHigh (human cost)Negligible

Take action with circl hash lookup

Boost your security posture without overloading your SOC teams, thanks to intelligent automation.

Audit historical logs with CIRCL Hash Lookup

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