Dr. Elena Rostova
VP of Software Excellence
Cybersecurity is often treated as something only banks and telecom operators need to worry about. In practice, any organization that stores customer data, processes payments, or relies on email and shared file systems is a potential target, and the cost of a breach is rarely confined to the IT department — it shows up in lost customer trust, regulatory exposure and the staff hours spent cleaning up afterward.
The five essentials below aren't an exhaustive security program, but they're the foundation everything else builds on. Organizations that get these five right are dramatically harder to compromise than ones that have invested in more advanced tools while skipping the basics — and in our experience assessing organizations across banking, telecom and government sectors in South Sudan, it's almost always one of these five that's missing when a breach happens, not an exotic attack technique.
The first essential is multi-factor authentication on all accounts that matter — email, financial systems, and anything with administrative access to a shared platform. A huge proportion of breaches start with a single compromised password, often reused across multiple services, and MFA closes that door cheaply and quickly without requiring new hardware or a big budget line.
The accounts most worth protecting first are the ones that, if compromised, would let an attacker reach everything else: the email account tied to password resets across other systems, the admin login for your website or customer database, and any account with access to company bank accounts or mobile money wallets. Starting MFA rollout with these, rather than trying to cover every account at once, gets the highest-risk gaps closed fastest.
Resistance to MFA usually comes down to convenience, not principle — an extra step at login feels like friction until the alternative is explained clearly. Using an authenticator app rather than SMS codes where possible also closes a secondary gap, since SMS-based codes can be intercepted through SIM-swap fraud, a scam that has targeted mobile money and banking customers directly in this region.
The second essential is a basic, tested backup strategy — not just backups that run automatically on a schedule, but backups that someone has actually tried to restore from recently. An untested backup is a hope, not a plan, and the worst time to discover a backup file is corrupted or incomplete is during an actual ransomware incident.
Ransomware attacks are far less damaging to organizations that can recover their data without paying anyone. That recovery capability depends entirely on backups being stored somewhere an attacker who compromises the main network can't also reach and delete — a genuinely separate system or offline copy, not just a second folder on the same server.
A practical test schedule doesn't need to be elaborate: picking one system per quarter and actually restoring it to a spare machine, timing how long the process takes and confirming the data that comes back is complete and current. Organizations that skip this step often discover, only during a real incident, that a backup job had been silently failing for months while the dashboard showed a reassuring green checkmark.
Third is network segmentation — making sure that if one device or system is compromised, an attacker can't move freely to everything else on the network. This is particularly relevant for organizations with multiple branch sites connected to a central network, where a single infected laptop in one branch shouldn't be able to reach the head office's financial systems.
Segmentation doesn't require an expensive overhaul. For many organizations, it starts with something as simple as putting guest Wi-Fi, staff workstations, and servers running critical applications on separate network segments with controlled access between them, so a compromise in one area is contained rather than becoming an organization-wide incident.
For organizations with branch offices connected over VSAT or fiber back to a head office network, segmentation also needs to account for that link itself — a branch shouldn't have unrestricted access to every head office system by default, and a VPN connecting the two should be scoped to only what that branch genuinely needs to reach, rather than treated as an open pipe between two trusted networks.
Fourth is staff awareness. Most successful attacks rely on a person clicking a link, opening an attachment, or approving a request that looks legitimate — a fake invoice, a message impersonating a manager asking for an urgent transfer, a link mimicking a bank's login page. Technical controls alone can't stop an attack that a trusted employee unknowingly lets in.
Short, regular training sessions make a measurable difference in a way that one-off lectures don't. A five-minute review of a real recent phishing attempt, shared with staff shortly after it happens, tends to stick far better than an annual security briefing that everyone forgets by the following month.
The most effective awareness programs also make it easy, not embarrassing, for a staff member to report a mistake. An employee who clicked a suspicious link and is afraid to say so will stay quiet, giving an attacker more time inside the network; a culture where reporting a mistake quickly is treated as the right call, not a disciplinary matter, shortens that window considerably.
Fifth is having a response plan before you need one. Knowing who to call, what to disconnect, and how to communicate with customers during an incident turns a chaotic event into a managed one — the difference between a contained issue resolved in hours and a spiraling crisis that takes days to bring under control.
The plan doesn't need to be long, but it needs specific names and numbers in it: who has the authority to take a system offline, which vendor or provider to call first, and who drafts the customer communication if data may have been affected. Our cybersecurity and forensics team works with organizations to assess these five areas first, because a strong response plan resting on weak backups and no segmentation still leaves an organization exposed.
Running a short tabletop exercise once a year — walking through a hypothetical incident with the actual people named in the plan, without touching any real systems — surfaces gaps a written document alone won't. It's common to discover during these exercises that the person listed as the emergency contact changed roles months ago, or that two people both assumed the other one had the authority to disconnect a compromised server.
Dr. Elena Rostova
VP of Software Excellence
Part of the CodeLabs team delivering software, connectivity, security and creative solutions across South Sudan and beyond.
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