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Critical Watch

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Critical Watch was a Dallas-based security, risk, and compliance company known for vulnerability assessment and PCI compliance software.

Last updated August 26, 2026

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History

Critical Watch was the operating name associated with Achilles Guard, Inc., a security, risk, and compliance software company headquartered in Dallas, Texas. The company was co-founded in 2000 by Eva Bunker and Nelson Bunker. Its business developed during a period when organizations were placing greater emphasis on formal vulnerability assessment, standardized security findings, and compliance programs for regulated data environments. The company's principal area was computer vulnerability assessment. Its software was intended to scan systems or networks for weaknesses and provide analysis that could help security teams understand and prioritize risks. Critical Watch was described as CVE-compatible, meaning that its vulnerability-related capabilities could use or relate findings to the Common Vulnerabilities and Exposures system. CVE compatibility was significant for interoperability with established security terminology and for communicating technical findings across security teams, vendors, and compliance functions. Critical Watch also worked in Payment Card Industry compliance software. This positioned the company not only as a security-tool provider but also as a supplier of assessment and documentation capabilities for organizations handling payment-card information. Its offerings addressed the practical relationship between technical security controls and compliance requirements, particularly in environments where vulnerability discovery and audit preparation were connected activities. FusionVM was among the products associated with the company. Trade coverage described FusionVM as a virtual all-in-one appliance, suggesting an effort to package scanning and analysis functions into a consolidated enterprise security platform. A 2011 SC Magazine article specifically covered the product. Critical Watch was also mentioned in an Infosecurity Magazine industry brief in 2008, providing evidence of its presence in the professional information-security market during the late 2000s. The company's corporate history culminated in a transaction announced on January 6, 2015, when Alert Logic stated that it had acquired Critical Watch. Alert Logic's interest was linked to Critical Watch's scanning and analysis capabilities. The available reference material does not establish whether the Critical Watch brand continued independently after the acquisition, whether its products were fully integrated into Alert Logic, or whether the legal entity remained active. Accordingly, the brand's current status cannot be determined from the supplied sources.

  • 2015

    Acquisition by Alert Logic

    [1]

    Alert Logic announced that it had acquired Critical Watch for its scanning and analysis capabilities.

  • 2011

    FusionVM receives trade-press coverage

    [1]

    SC Magazine covered Critical Watch's FusionVM virtual all-in-one appliance for security assessment.

  • 2008

    Mention in Infosecurity Magazine

    [1]

    Critical Watch appeared in an Infosecurity Magazine industry brief covering the information-security sector.

  • 2000

    Critical Watch is co-founded

    [1]

    Eva Bunker and Nelson Bunker co-founded the company associated with the Critical Watch name.

Products and positioning

Enterprise security, vulnerability management, and compliance software focused on scanning, analysis, and PCI-related assessment.

  • Vulnerability assessment appliance

    FusionVM

    FusionVM was presented as a virtual all-in-one appliance for security assessment. Its role was associated with vulnerability scanning and analysis, bringing together capabilities intended to help enterprise users identify weaknesses and interpret assessment results. Industry coverage positioned it as one of Critical Watch's notable offerings.

  • Cybersecurity software

    Critical Watch vulnerability assessment software

    Critical Watch developed software for assessing computer and network vulnerabilities. The company's tools were described as CVE-compatible and were intended to support the discovery, classification, and analysis of security weaknesses in organizational environments.

  • Compliance software

    Critical Watch PCI compliance software

    The company also produced software supporting Payment Card Industry compliance activities. These capabilities connected technical security assessment with the documentation and control-review needs of organizations subject to payment-card security requirements.

Brand decisions

  • 2015

    Accept acquisition by Alert LogicM&A

    Background

    Alert Logic announced on January 6, 2015 that it had acquired Critical Watch. The transaction was associated with Critical Watch's vulnerability scanning and analysis capabilities.

    Action taken

    Critical Watch became part of Alert Logic through an acquisition.

    Aftermath

    The available sources do not clarify the subsequent treatment of the Critical Watch brand, products, or legal entity.

Sources3 sources

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