The enemy within – insider ­security threats

May 2019 Editor's Choice, Information Security, Financial (Industry)

Forty-two years ago, almost to the day, brazen thieves tunnelled into the Standard Bank branch in Krugersdorp over the Easter long weekend. The robbers had done their homework and made off with a then whopping R413 000. To this day they have never been caught or even identified. Many still believe it was an inside job as the men knew exactly where to tunnel to and knew that the bank’s trembler alarms were disabled due to generators running nearby.

Although many silently applauded their audacity at the time, insider threats in today’s financial world are far more insidious and destructive. However, many financial institutions mainly have themselves to blame for lack of attention to or failing to follow best practices and procedures. So where should it all begin?

Definitely not when the person assumes his/her position, it should start much earlier.

The CV/résumé

Normally, after placing a job vacancy ad, organisations are flooded with applications and HR has the onerous task of wading through them all. Most are from genuine work seekers, however, in amongst them are those from chancers, ineligibles and far worse, those seeking to harm the company financially, reputationally or simply out of a perceived grievance.

Once a short-list of applicants has been decided on the serious task of vetting the candidates must begin with no short-cuts taken. This is a time consuming and costly exercise but will pay dividends in the future. Remember, someone looking to harm the company or inflate their credentials will go to a lot of effort to present a professional CV/résumé.

The interview

This is probably the most important step in the hiring of a candidate. The interviewing panel should consist of members of senior management, HR and a Subject Matter Expert (SME) with in-depth knowledge of the job requirements that the applicant is applying for. Things the panel should look out for include:

• Is the interviewee on time for the interview?

• Are they decently attired, presentable and clean?

• Do they appear at ease in the meeting?

• Can they answer questions relating to their qualifications and work experience promptly without having to think about it or assuming a shifty look?

• Do they have valid reasons for leaving their current employer or do they bad-mouth them?

• Have they done basic research on your company, including its vision, ethics, reputation, management, etc.? Do they ask relevant questions in return?

Once a decision has been made over the correct candidate/s, the next step in the process can begin.

Validation

This step is to check that the person is who they claim to be and includes ID checks, qualification checks, police reports, references from previous employers and community leaders. Remember, any referees who sound hesitant to disclose information, cage their words or are too gushing in their praise raise red flags. We also recommend using a company to conduct social media checks to ensure the potential candidate does not have a background of unwanted behaviour traits.

Onboarding

Now that the successful candidate has received and accepted a formal invitation for employment, onboarding can begin in earnest. The recruit must be made to feel welcome when they start their work. HR will arrange all the necessary paperwork to be done, including ID access cards, security passes, parking, banking details as well as appointing a ‘buddy’ to show the newcomer around, explain the rules of the company, introductions to members of management and teams, discuss prospects for advancement and further learning and development.

The IT department will arrange the minimal permissions the person will need to perform their job functions and ensure that strong passwords and password managers are in place. Permissions for promotions, demotions or relocations must be altered accordingly. BYOD (Bring Your Own Device) and remote working rules and policies will be explained and made available to the

new employee.

Regular follow-ups must be made by unit managers, IT, HR, etc. to ensure the person is happy and comfortable in their new position and performing as expected of them. An angry, disgruntled or bored employee is a very real danger to the company.

Offboarding

As important as onboarding is, offboarding correctly is critical. Whether the employee resigns or is dismissed, the process must take place swiftly and clinically. All access/security/ID cards must be returned and cancelled. Biometric access (fingerprint or retinal/facial scanning recognition) must be immediately revoked. All company devices (laptops, desktops, iPad, phones, USBs, external hard drives, etc.) must be collected and their serial numbers, makes and models checked against the issuing list. IT must ensure that all these devices are thoroughly checked for malware or preferably wiped clean. Logic bombs or Random Access Trojans (RATs) could have been placed on them to be used at a later date. All program passwords must be cancelled and where the employee had joint password access, this must be changed at once.

While it is almost impossible to eliminate insider threats, much can be done to reduce the chances of it occurring and limiting the risks it entails.



Credit(s)




Share this article:
Share via emailShare via LinkedInPrint this page



Further reading:

Who are you?
Access Control & Identity Management Information Security
Who are you? This question may seem strange, but it can only be answered accurately by implementing an Identity and Access Management (IAM) system, a crucial component of any company’s security strategy.

Read more...
Check Point launches African Perspectives on Cybersecurity report
News & Events Information Security
Check Point Software Technologies released its African Perspectives on Cybersecurity Report 2025, revealing a sharp rise in attacks across the continent and a major shift in attacker tactics driven by artificial intelligence

Read more...
What is your ‘real’ security posture?
BlueVision Editor's Choice Information Security Infrastructure AI & Data Analytics
Many businesses operate under the illusion that their security controls, policies, and incident response plans will hold firm when tested by cybercriminals, but does this mean you are really safe?

Read more...
What is your ‘real’ security posture? (Part 2)
BlueVision Editor's Choice Information Security Infrastructure
In the second part of this series of articles from BlueVision, we explore the human element: social engineering and insider threats and how red teaming can expose and remedy them.

Read more...
IQ and AI
Leaderware Editor's Choice Surveillance AI & Data Analytics
Following his presentation at the Estate Security Conference in October, Craig Donald delves into the challenge of balancing human operator ‘IQ’ and AI system detection within CCTV control rooms.

Read more...
AI rewrites financial crime
Security Services & Risk Management Financial (Industry)
Criminals are exploiting South Africa’s high connectivity and still-maturing regulation to scale attacks faster than we can defend them. The speed and sophistication of these scams are outpacing the systems designed to stop them.

Read more...
Onsite AI avoids cloud challenges
SMART Security Solutions Technews Publishing Editor's Choice Infrastructure AI & Data Analytics
Most AI programs today depend on constant cloud connections, which can be a liability for companies operating in secure or high-risk environments. That reliance exposes sensitive data to external networks, but also creates a single point of failure if connectivity drops.

Read more...
Toxic combinations
Editor's Choice
According to Panaseer’s latest research, 70% of major breaches are caused by toxic combinations: overlapping risks that compound and amplify each other, forming a critical vulnerability to be exploited.

Read more...
Kaspersky finds security flaws that threaten vehicle safety.
News & Events Information Security Transport (Industry)
At its Security Analyst Summit 2025, Kaspersky presented the results of a security audit that exposed a significant security flaw enabling unauthorised access to all connected vehicles of one automotive manufacturer.

Read more...
GenAI fraud forcing banks to shift from identity to intent
AI & Data Analytics Information Security Financial (Industry)
The complexity and velocity of modern fraud schemes, from deepfakes to fraud and scams involving social engineering, demand more than just investment in new tools; they need adaptability and expanding the security net.

Read more...










While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.




© Technews Publishing (Pty) Ltd. | All Rights Reserved.