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Cyber Incident Response Service 


If you’ve been hit by a cyber incident, every minute counts. 
Our expert cyber incident response service team provides emergency support to contain threats, minimise damage, and restore your operations quickly and effectively.

I want cyber incident response services now

Is Something Like This Happening to You?

A ransomware attack has encrypted all your customer databases and financial records. Criminals are demanding a six-figure Bitcoin payment for decryption keys. All your operations are paralysed. 
One of your employees has fallen for a sophisticated phishing campaign and inadvertently transferred a large sum to fraudsters who cloned the company's internal email system. 
Critical cloud backups have been deleted and system configurations modified, causing days of service disruption. 
Hackers have exploited an unpatched vulnerability in your payment processing system and extracted customer credit card data. 
Ransomware

Don't Panic!

Jake Ives, Head of Security says, "If the worst happens, take a step back and think about your next steps with a trusted IT partner. While it's important to contain the incident, it's also crucial to preserve the compromised system in its current state for forensic analysis. It's the only way you can understand what data was lost and crucially, learn lessons for the future."
Jake Ives, Intersys Head of Security

Our Cyber Incident Response Services

With nearly 30 years of handling critical cyber incidents across multiple industries, we deliver rapid response capabilities backed by advanced forensic expertise.
You don’t have to sign up for a monthly plan or retainer to resolve your cyber security incident. Just give us a call.
You’ll speak to one of our highly skilled cyber security incident response team members who will explain how you can contain the incident. All our technical team is customer service trained so you’ll be speaking to someone who can explain what is going on and your next steps in everyday language.

BREACH INVESTIGATION

Thorough analysis to determine the scope and impact of security breaches.

MALWARE ANALYSIS

Advanced reverse engineering to understand and combat sophisticated threats.

DIGITAL FORENSICS

State-of-the-art forensic capabilities to investigate incidents and preserve evidence. 

EMERGENCY RESPONSE TEAMS

Ready availability with quick response times to handle active cyber incidents.

POST INCIDENT ANALYSIS

Comprehensive reporting and recommendations to prevent future incidents.

CRISIS COMMUNICATION

Support for stakeholder communications and reputation management. 

REGULATORY COMPLIANCE

Expert assistance with mandatory breach reporting and regulatory requirements.

RECOVERY PLANNING

Strategic guidance to restore systems and strengthen security posture.
I want cyber incident response services now

Why Choose Intersys for Cyber Incident Response Services?

Solid track record

We are a dedicated cyber security provider and have tried-and-tested methodologies for containing cyber incidents and recovering data – fast.

Compliance expertise

We work with highly regulated industries including life sciences and financial services and can advise on your data protection obligations.

ISO 27001 Certified

We are accredited data protection experts with the certification that proves we follow industry best practices.

Microsoft Modern Work

We are a Microsoft Modern Work Partner – a recommended provider for finding solutions with Microsoft products.

Great Communication Skills

Our team is customer-service trained – our clear communication skills will be crucial if you suffer a cyber incident crisis.
I want cyber incident response 

Our Cyber Incident Response Service Includes the Following Steps:

1.

Engage

We establish secure communication channels, gather critical information about the incident, and deploy our team either remotely or on-site based on the situation's severity. During this phase, we also help you activate your incident response plan and begin coordinating with key stakeholders, including legal counsel and insurance providers if necessary.

2.

Prepare

We work with your team to understand your environment, identify critical assets, and establish incident objectives. We deploy our specialised tools and technologies, set up secure communication channels, and create an incident response war room. During this phase, we also begin documenting everything for potential legal or insurance requirements and establish clear roles and responsibilities for all team members involved in the response.
3.

Investigate

We use advanced forensic techniques to understand the full scope of the incident. We conduct detailed system analysis, review logs and network traffic, and use specialised tools to identify indicators of compromise. Our experts trace the attack path, identify affected systems, and determine what data or assets may have been compromised. We maintain detailed documentation throughout the investigation, preserving evidence and establishing a clear timeline of events. This thorough investigation informs our containment strategy and helps prevent similar incidents in the future.
4.

Contain

We take immediate action to stop the incident from spreading and prevent further damage. Our team implements strategic containment measures based on the investigation findings, which may include isolating affected systems, blocking malicious traffic, or revoking compromised credentials. We carefully balance the need for containment with maintaining critical business operations, ensuring that our response doesn't cause unnecessary disruption. Throughout this phase, we continuously monitor for any signs of persistent threats or attempted workarounds..
5.

Report

A key aspect of cyber incident response is properly reporting the incident to the authorities. We can help you compile information about the incident into a report to present to the relevant authorities such as the ICO (Information Commissioner’s Office), NCSC (National Cyber Security Centre) as well as any specific regulators relevant to your industry. 
6.

Recover

We safely restore your operations while implementing improved security measures. We assist in cleaning infected systems, restoring from secure backups, and rebuilding compromised environments with enhanced security controls. Our team helps prioritise recovery efforts based on business impact and provides guidance on securely bringing systems back online. We also develop and implement new security measures to prevent similar incidents, conduct post-incident testing, and provide detailed documentation of all recovery actions taken.

Cyber Security Incident Prevention: STOP These Attacks Ever Happening to You

Intersys is a Cyber Security as a Service (CSaaS) provider, helping organisations of all sizes prevent crippling cyber incidents. Here’s how our cyber security incident response services help our clients prevent cyber incidents from happening in the first place.
  • Risk Assessment:
    Identify vulnerabilities and prioritise fixes.
  • Multi-Layered Defense:
    Secure endpoints and networks with advanced tools.
  • Email Safety:
    Filter and encrypt to thwart email-based attacks.
  • Access Control:
    Restrict data access and deploy encryption.
  • Real-Time Monitoring:
    Swiftly detect and halt ransomware attempts.
  • Secure Backups:
    Regular encrypted offsite backups for recovery.
  • Employee Training:
    Empower staff to detect and resist threats.
  • Security Updates:
    Regularly patch software to close gaps.
  • Ransomware Incidence
    Response Plan: Detailed response plan for effective action.
  • Threat Intelligence:
    Stay ahead with emerging threat insights.
Swift Cyber Breach Response Removes Aggressive Virus

A secondary school in the Southeast needed a swift cyber breach response service when their IT systems became infected with the Emotet virus. The malware had spread to every computer and server. School staff were unable to use some machines, while in other cases it took up to an hour just to log in. Accessing files had become virtually impossible. If the situation had been left unattended, the malware could very likely have evolved into ransomware.

See how we fixed it

Cyber Incident Response: Frequently Asked Questions

Do you provide cyber incident response in the London EC3 area?

We absolutely do. Our office in Leadenhall Market in the heart of the City means that we are right on the doorstep of all EC3 organisations. We can have someone over to assess the situation very quickly . We also specialise in serving highly regulated sectors based in the City including the insurance, re-insurance, banking and finance sectors. 

How do I know you will understand the implication of a cyber incident on my highly regulated sector?

For nearly 30 years, we have been helping organisations from a range of sectors deal with cyber incidents. We are particularly well-versed with the requirements of highly regulated industries from pharmaceutical and legal to insurance and finance. Whether it’s EU Annex 11, DORA, UK GDPR or FCA regulations, we know the importance of due diligence in your sector. 

What is a cyber incident response?
A cyber incident response is a structured approach to managing and addressing cyber security threats, attacks, or data breaches that affect an organisation's information systems. It encompasses the entire process of identifying, containing, and recovering from security incidents while minimizing damage and downtime. This includes immediate threat detection, incident assessment, containment strategies, system recovery, and post-incident analysis. An effective cyber incident response plan combines technical expertise, established procedures, and coordinated actions to protect assets, maintain business continuity, and prevent future incidents.
What should a cyber incident response plan include?
A comprehensive cyber incident response plan should include clearly defined roles and responsibilities for the response team, step-by-step procedures for incident detection and classification, and detailed escalation protocols. The plan must outline communication strategies for stakeholders, including employees, customers, and regulatory bodies. It should specify tools and resources needed for incident handling, document containment and eradication procedures, and include recovery strategies. Additionally, the plan should incorporate regulatory compliance requirements, evidence preservation guidelines, and processes for post-incident review and improvement.
What is a cyber incident response checklist?
A cyber incident response checklist is a structured document that outlines critical actions to take during a security incident. It typically includes steps for initial incident detection and validation, immediate containment actions, evidence preservation methods, and system recovery procedures. The checklist should cover notification requirements for relevant stakeholders, documentation processes, and legal/regulatory compliance steps. It serves as a practical guide during high-stress situations, ensuring no crucial steps are missed and helping maintain an organised response while under pressure.

Shut Down Cyber Attacks Now!

Talk to Intersys about our cyber incident response service to secure your systems and prevent attacks.
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