Critical Watch
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&ABackground
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.
Recent events
- 2015
Alert Logic acquires Critical Watch[1]
M&A
Alert Logic announced its acquisition of Critical Watch, identifying the acquired company's scanning and analysis capabilities as relevant to the transaction.
- 2011
Industry coverage of Critical Watch FusionVM[1]
Product launch
SC Magazine published coverage of Critical Watch's FusionVM virtual all-in-one security assessment appliance.
- 2008
Critical Watch featured in an information-security industry brief[1]
Other
Infosecurity Magazine included Critical Watch in an industry news brief during the company's period of activity in security and compliance software.
Sources3 sources
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