Risk Assessment


Incident Response


Vulnerability Assessment

Penetration Testing



GreyCastle Security's incident response simulation was an extremely valuable exercise to our organization. The unexpected, real-life exercises challenged our teams to quickly react to keep our organization secure.

Justin M., Information Security Manager, Financing Company, Fairport, NY

Working with GreyCastle Security has been an absolute pleasure. Their proven processes and dedicated team members delivered unsurpassed results and made the entire experience efficient and enjoyable.

Patrick Q., Vice President, Property Operations, Data Center Provider, Manassas, VA

With the strict timelines imposed upon us, we knew we needed an experienced and dedicated company to help us implement the requirements of the ISO 27001 standard. The GreyCastle Security team positively delivered and helped us achieve certification with no non-conformities.

Patrick Q., Vice President, Property Operations, Data Center Provider, Manassas, VA

GreyCastle Security continued to improve our ISMS in year two of our four year engagement and helped us pass another ISO 27001 audit.

Raymond K., Vice President, Security and Compliance, Retail Software-as-a-Service Company, Irvine, CA

We’ve had several engagements with GreyCastle Security. Each engagement met or exceeded my expectations. When issues with the engagement did occur, GreyCastle Security was quick to investigate and correct the problem.

Kristine C., Chief Information Officer, Healthcare Association, Rensselaer, NY

GreyCastle Security doesn’t just sell cybersecurity services, they sell peace of mind. They helped to dramatically improve my organization’s security posture in a fraction of the time it would have taken without them.

Jon B., Chief Information Officer, Community College, Troy, NY

When I look at the quality of work received from GreyCastle Security, I can say that the content has been superior. We have worked with GreyCastle Security for almost 4 years now, and we have developed a System Security Plan based around the information that they have shared with us. Not only the physical content, like policy and procedure templates, but also GreyCastle Security has shared their knowledge and experience with us so we can make the best decisions for our organization. GreyCastle Security’s ability to demonstrate to us what the best industry standards are has been an enormous help to us.

Rachel S., Information Security Officer, Healthcare Non-Profit, Syracuse, NY

We have worked with several companies in the past and GreyCastle Security has by far been the most enjoyable to work with. Thank you for your commitment in assisting companies to improve security.

Meridith M., Director, Information Technology, Assisted Living Facility, Cabot, PA

GreyCastle Security has an incredible amount of experience and expertise in the security arena with a professional approach to every project. From the original risk assessment to the development and execution of a security roadmap, GreyCastle Security was able to walk us through this process which has greatly enhanced our security posture.

Dan L., Information Systems Manager, Credit Union, Rochester, NY

Working with GreyCastle Security has been a productive and easy. Their attention to detail and highly structured approach help us to implement an incident response plan that is both effective and makes sense for our organization.

Aaron G., Manager, Cloud Operations, Software Company, Rochester, NY

Our partnership with GreyCastle Security has allowed our institution to approach cybersecurity in a comprehensive way. GreyCastle Security offers the resources to more efficiently and expertly approach the multi-layered challenges of implementing a modern cybersecurity strategy.

Fred D., VP Strategic Initiatives and Chief Information Officer, Liberal Arts College, Geneva, NY

GreyCastle Security kept coming up in our search for a cybersecurity firm and we are glad they did. They moved fast and with care. They understand that not all businesses are the same and ensure that you are actually securing your data, not just checking boxes on a regulatory form. We couldn't be happier with our choice.

Marlowe G., Chief Executive Officer, Electric Health Record Software Company, New York, NY

The staff at GreyCastle Security is very thorough and knowledgeable. They are providing my organization great support as we face the challenges of maintaining a secure environment.

Madeline C., Director, Information Technology, Labor Union, Latham, NY

GreyCastle Security provided my company with outstanding expertise in the area of regulatory compliance and ultimately helping us become ISO 27001 certified!

Tyler C., Manager, Information Security, Software-as-a-Service Company, Cincinnati, OH

GreyCastle Security helps us maintain strict security guidelines and cutting edge cyber security, keeping our members information safe and secure.

Sue C., Chief Executive Officer, Credit Union, Corinth, NY

In the rapidly changing world of information security, I needed a strong partner to augment my internal team. GreyCastle Security is that partner, and has done an outstanding job supporting our efforts.

Tom F., Vice President, Information Technology, Manufacturer, Cumberland, RI

GreyCastle Security was highly recommended to us and they lived up to our expectations. The ISO prep auditor was extremely knowledgeable and helped us stay on schedule, maintaining almost daily contact over the span of the project.

Raymond K., Vice President, Security and Compliance, Retail Software-as-a-Service Company, Irvine, CA

Since I started working with GreyCastle Security, I feel my facilities security both from a human standpoint and technological standpoint as improved drastically. They have given me the knowledge to better serve not only the staff but the patients as well.

Steve A., IT Systems Administrator, Healthcare Provider, Scotia, NY

After working with GreyCastle Security we have a better understanding of where our risks are and how we can continue to manage them.

Joel R., COO, Healthcare Analytics Provider, Albany, NY

We've had a very positive experience working with GreyCastle. They worked well with our team and provided a good baseline for improving our security posture.

Richard D., Director of Information Technology, Regional Medical Center, Manchester, CT

Working with GreyCastle has been great. They helped us prepare for auditors, meet strict compliance deadlines and secure our patients.

Chris B., CIO, Healthcare System, Longview, TX

We will definitely continue to use GreyCastle Security in the future to manage all our security risks.

Kevin L., CIO, State University, Hamilton, NY

Working with GreyCastle Security has been excellent. They have great subject matter experts that were very helpful and responsive to our cybersecurity needs.

John A., CFO, Global Retailer, Albany, NY

Regardless of how consumer behaviors and digital payment capabilities change, we feel like we'll be ready from a security perspective -- and we have GreyCastle to thank for that.

Roy S., Director, Online Retailer, Albany, NY

We needed to define and enforce cybersecurity policies for all of our employees. Cybersecurity awareness is about accountability, and GreyCastle has taught us how to train employees in a fun and interactive way that makes the point, and helps employees remember it.

Roy S., Director, National Retailer, Albany, NY

They've been a tremendous partner that has brought skills in-house that we simply didn't have. GreyCastle never loses focus: They don't get distracted, and the expertise they provide gives us a peace-of-mind that's hard to put a price on.

Roy S., Director, Publically Traded Retailer, Albany, NY

Since working with GreyCastle Security, not only have we become compliant, but we've also set ourselves up for a competitive advantage for gaining future clients. We now have the ability to make ourselves and our customers feel secure.

Don W., CIO, National Retailer, Schenectady, NY

They [GreyCastle Security] offered and provided a very robust variety of services that catered to our every need from both a cybersecurity and business perspective.

Mark C., CEO, Public Utility, Albany, NY

Prior to working with GreyCastle Security, we were in pretty rough shape. They were able to get us ready for compliance deadlines and avoid regulatory penalties.

Brad M., Information Technology Administrator, Federal Credit Union, Schenectady, NY

GreyCastle Security has a great reputation in the area and it was the logical place to turn when we realized we needed to buckle down on our security.

Joseph S., Partner, Law Firm, Albany, NY

GreyCastle Security helped us identify areas for improvement within our people, process and technology and because of that we were able to make our environment much more secure.

Matt M., Director, Government Agency, Albany, NY

While there are no guarantees when it comes to cybersecurity, GreyCastle has helped provide us with piece of mind and reassure us that we're headed in the right direction.

Kevin B., Director, Consulting Agency, Buffalo, NY

GreyCastle Security was able to meet our security needs and provide tremendous value, all while staying within our budget.

Joe H., CEO, National Manufacturer, Latham, NY

They've helped us identify our vulnerabilities and provided the resources needed to manage them. We worked with a great team and will continue to do so in the future.

Andy P., IT Infrastructure and Operations Manager, National Media, Newington, CT

GreyCastle Security has been a good consultant to work with. They're very timely, good at reporting and are able to present our security issues and solutions in a practical manner that's easy for us to understand.

Scott T., IT Manager, National Insurance Company, Towson, MD

It's been great working with the GreyCastle Security team. They're intelligent about security, but also personable and engaging. They didn't just 'check boxes', they actually secured our organization as a whole.

Nosa B., CEO, Technology Provider, Jackson, MS

GreyCastle Security helped us navigate through a complex Risk Assessment that we simply couldn't have done ourselves.

Martin B., ISO, Fortune 500 Manufacturer, Detroit, MI

Working with GreyCastle Security has been a very positive experience. The Risk Assessment that was conducted allowed us to measure our progress year after year and their Awareness Training was extremely effective with our employees based on phishing attacks that occurred afterwards.

Chris B., CIO, Healthcare Provider, Torrington, CT

I have worked with GreyCastle Security in a variety of different contexts. Without exception, I have found GreyCastle staff to be responsive, easy to work with and highly capable.

Kurt B., Partner, Legal Office, Albany, NY

In a complicated world where cyber threats are a boardroom topic, it is refreshing to see an organization like GreyCastle Security take a pragmatic approach in helping organizations. They are the niche player that brings real-world solutions, unique to each company. GreyCastle is a trusted partner in advancing my security program to 'best in class' and understand how to balance the need to protect the organization while running the business.

Martin B., VP and CSO, Technology Company, North Canton, OH

The team from Greycastle was tremendous to work with; they led us through the entire process, leveraging their expertise to help improve the security of our application.

Randall J., Principal, Application and Mobile Development Company, Warwick, RI

GreyCastle Security is always a pleasure to work with. They are professional, responsive, and, most importantly, they routinely exhibit security expertise. We consider them a critical long-term partner.

Director of Privacy and Security, Health Information Exchange, Albany, NY

Our interaction with GreyCastle was such a positive and educational project we are now actively engaging with GreyCastle on a monthly basis to continue to improve our systems and processes across the entire enterprise.

John N., Director of Information Systems, Manufacturer, Latham, NY

GreyCastle is great to work with. They have a strong understanding not only of our security challenges, but the compliance ones we face as well. We will definitely use their services again.

Christine J., IT Manager, Hospital System, Johnstown, NY

After working with GreyCastle we have a better understanding of where we are and where we're headed. We're able to manage our risks and ensure the security of our students, staff and college as a whole.

Emily H., Information Security Officer, Private College, Poughkeepsie, NY

The instructor was able to keep our attention and bring across the points very clearly. I would recommend him for instruction anytime you need to keep the attention of the audience for 'dry' material.

Awareness Training Student, Private College, Schenectady, NY

Their security experts and engineers were very knowledgeable and understood our concerns. We couldn't have picked a better cybersecurity company to work with.

Jean C., Administrator, State Financial Agency, Albany, NY

GreyCastle Security was very easy to work with, they were extremely accessible, they were very detailed, and showed a strong willingness to answer any questions we had.

Director of Privacy and Security, Health Information Exchange, Albany, NY

Working with GreyCastle Security on our DDoS issue was a pleasure. They knew what they were talking about and guided us to a solution that would work for my organization.

Antonio V., Technology Coordinator, High School, Philadelphia, PA

GreyCastle Security was amazing! They took the time to understand our needs and then helped us design a program that exceeded our expectations all well within our time deadlines.

Mark B., Director, Network and Technical Services, Private Liberal Arts College, Saratoga Springs, NY

GreyCastle Security has helped us navigate and prioritize the key strategies to deal with the speed of light changes and threats that impact our IT environment.

William G., Chief Executive Officer, Human Services Provider, Albany, NY

I have worked closely with GreyCastle Security on a great many projects over the past two and one-half years, with incredible success. The GreyCastle Security team is accomplished, credible, professional and skilled in all aspects of cybersecurity tradecraft. The beneficiary of our relationship is founded in the security program improvements achieved on behalf of our clients. I consider my company and our portfolio of strategic partners to be the thought leaders in the industry, and GreyCastle Security's presence is at the zenith of that small group in cybersecurity services.

Joseph V., Director, Mobility and Security, Information Technology and Services Company, Clifton Park, NY

GreyCastle Security's auditors were very helpful and professional. They guided me through the process since this was my first real internal audit for ISO 27001. I definitely recommend them for any of your auditing and assessment needs.

Bridgette B., Manager, Global Privacy and Risk, Technology Outsourcing Company, Tampa, FL

GreyCastle Security provided the practical guidance to augment our historic security policies and procedures; transforming them into a “best practices” portfolio. Most importantly, we realized true ROI on our updated data security efforts in addition to the obtainment of the annual certification(s).

James D., Chief Financial Officer, Data Analytics and Audit Company, Diamond Bar, CA

GreyCastle Security came highly recommended and hit the mark on their project planning, technical expertise and ability to quickly understand our business.

Kevin G., Chief Information Security Officer, Managed Service Provider, Newark, NJ

We have been working with GreyCastle Security for a number of years with a Managed Awareness Training service as well as other security engagements.  With GreyCastle’s guidance we implemented a training program and policy.  Since then we have witnessed steadily improving results from the training, phish testing, and remedial web training modules for the employees.  I also feel it is of great value that the training is refreshed and tweaked to incorporate our policies and specific concerns for our company.

Scott T., IT Manager, Insurance Company, Towson, MD

My experience working with GreyCastle Security has been a revelation. I found them to be highly informed, possessing a wealth of domain knowledge that I needed to incorporate into my business. I believe they have positioned our firm to surpass expectations in achieving our end goals.

Gerald E., CTO, Marketing Communications Platform, New York, NY

GreyCastle Security's incident response simulation was an extremely valuable exercise to our organization. The unexpected, real-life exercises challenged our teams to quickly react to keep our organization secure.

Justin M., Information Security Manager, Financing Company, Fairport, NY

GreyCastle Security came highly recommended and hit the mark on their project planning, technical expertise and ability to quickly understand our business.

Kevin G., Chief Information Security Officer, Managed Service Provider, Newark, NJ

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