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What is Phishing

Turning Staff into Your First Line of Defence.

Published: September 2026 | Estimated Reading Time: 8 minutes | Focus: Cyber Awareness & Human Risk |

Ongoing security awareness training and practice exercises help employees become a proactive first line of defence.

Today’s businesses use advanced tools like next-gen firewalls, endpoint detection and response (EDR), and cloud-based email gateways.

Still, attackers often bypass even the best defences by targeting the human in the chain instead of technical weaknesses.

Regular data from the UK National Cyber Security Centre (NCSC) shows that over 80% of reported cyber security incidents begin with phishing.

Whether an attacker sends a fake parcel notice to a receptionist or targets a CFO with spear-phishing, social engineering remains the easiest path for adversaries.

Viewing employees as ‘the weakest link’ misses a valuable opportunity. With security training and realistic phishing simulations, your team can become an active first line of defence.

Defining Phishing: Beyond Generic Spam

Phishing is a type of social engineering where attackers trick people into sharing sensitive information, clicking dangerous links, or making financial transactions by pretending to be trusted organisations.

While generic spam is mostly annoying, phishing is a targeted attempt to access your business. Attackers now use artificial intelligence, fake domains, and public information to create scams that look like real company processes.

The Primary Phishing Vectors Facing UK Enterprises

Social engineering has evolved beyond poorly written emails about lottery winnings. Attackers now create scams tailored for specific roles and communication channels:

Spear Phishing

Spear phishing targets specific individuals, not just anyone. Hackers study the organisation’s public structure, recent contracts, and management structure, then send messages that mention real colleagues, projects, or suppliers.

Business Email Compromise (BEC) & Whaling

BEC attacks target senior executives and finance or HR staff who handle sensitive payroll data. Attackers pose as executives to request changes to bank details or urgent payments. Because these attacks use social engineering, traditional antivirus software does not detect them.

Smishing & Vishing (SMS & Voice Phishing)

Attackers often move from company email to personal or mobile channels. They send fake SMS messages (smishing) claiming an employee’s MFA device has been de-registered, or make voice calls (vishing), sometimes using voice cloning, pretending to be IT helpdesk staff and asking for credentials.

Adversary-in-the-Middle (AiTM) Phishing

Advanced attacks use reverse proxies (like Evilginx) placed between the user and the real login page, such as Microsoft 365. Once the victim enters their credentials and completes MFA, the proxy captures the session cookie. This lets the attacker take over the session without knowing the password or bypassing MFA.

The Annual Check-the-Box Training Doesn’t Work

Many organisations address social engineering by having employees watch a single compliance video and take a basic multiple-choice quiz.

This approach fails because employee behaviour won’t change for three main reasons:

  • It’s only theoretical. Reading about threats alone won’t help employees spot subtle warning signs or respond well under real pressure.
  • Knowledge from theory-based training fades quickly. Most of it is forgotten within a month.
  • A punitive culture makes employees less likely to report accidental clicks.  That makes it harder for security teams to respond quickly when it matters most.

Building a Defence: Simulated Phishing & Active Training

To build real resilience, organisations should move from passive awareness training to ongoing, measurable behaviour improvements.

For example, test employees with scams that mimic real attack methods, like fake SharePoint documents, HR policy updates, or IT password expiry alerts. These simulations give staff a safe way to practise spotting threats.

Contextual micro-learning based on when an employee clicks a simulated lure gives immediate feedback that highlights the specific red flags they missed, such as mismatched sender domains or urgent requests.

This approach encourages learning, not punishment. A good security programme should also measure how quickly employees report threats, not just how many avoid clicking.

With a visible ‘Report Phish’ button in Outlook or Google Workspace, employees can send real-time threat intelligence to internal security teams, allowing malicious emails to be isolated across the company within minutes.

To show progress, executives and compliance teams need clear data. Auditable evidence for cyber insurance, ISO 27001, and NCSC CAF requirements can be obtained by monitoring figures such as the Phish-Prone Percentage, the average time-to-report, and repeat patterns.

Frequently Asked Questions (FAQ)

Even with sophisticated spam filters, why is phishing still successful?

Secure Email Gateways (SEGs) block known bad IP addresses, file hashes, and common spam keywords. Attackers now avoid detection by hosting credential-stealing pages on trusted cloud services (like Microsoft Azure, Canva, or Google Forms), using new look-alike domains, or sending emails with malicious links only after starting a conversation.

Does MFA protect an organisation if an employee falls victim to a phishing attack?

Standard MFA (for instance, SMS codes or push notifications) adds an extra layer of security but does not provide complete protection. Attackers can bypass it with MFA fatigue attacks (overwhelming users with push notifications until they approve) or by using Adversary-in-the-Middle (AiTM) proxies to steal session cookies. In high-security environments, combining phishing-resistant MFA (like FIDO2 security keys) with strong employee security awareness works best.

Simulated phishing campaigns should run monthly or every two months, using random schedules and different templates. Fixed schedules let employees anticipate the campaigns, instead of staying alert to real threats.

What is the difference between phishing and spear phishing?

Phishing involves sending automated emails at random to thousands of organisations, hoping to trick careless users. Spear phishing is targeted, using research and real internal information to fool a specific person, department, or company.

  1. Report it immediately to your IT security team or service desk. Quick reporting lets security engineers revoke session tokens and reset passwords before attackers can use the account for further access.
  2. If you download or open a suspicious file, disconnect the device from the network by unplugging the Ethernet cable or turning off Wi-Fi. This helps stop malware from spreading.
  3. Do not try to delete local event logs or use consumer antivirus software. This could destroy important forensic evidence needed to understand the breach.

Managed Security Awareness & Phishing Simulation Services

Cyber Security Specialists delivers fully managed security awareness training and accredited technical testing to help UK enterprises, public sector bodies, and legal practices defend against advanced social engineering:

  • Managed Phishing Simulations: Realistic, safe attack simulations mirroring current UK adversary tactics and trending lures.
  • Role-Specific Security Training: Tailored micro-learning modules designed for C-suite executives, finance managers, HR teams, and general corporate staff.
  • Auditable Boardroom Metrics: Clear, executive-ready reporting documenting Phish-Prone improvements for ISO 27001, Cyber Essentials Plus, and cyber insurance criteria.
  • CREST-Accredited Social Engineering Assessments: Advanced red-teaming, targeted spear phishing, and physical security testing to evaluate your organisation’s real-world resilience.
To evaluate your workforce’s phish-prone baseline or discuss a tailored awareness programme, contact our technical advisory team directly:

Telephone: 0161 706 0244
Email: info@cybersecurityspecialists.co.uk

 

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