Threat Intelligence Platform vs SIEM vs EDR: What Does What?
A SIEM watches your logs, an EDR watches your endpoints, and a threat intelligence platform watches the world outside. What each genuinely does, where they overlap, which to buy first, and how they work together.
Ask three vendors what you need and you will be told, with equal confidence, that the answer is a SIEM, an EDR, or a threat intelligence platform. Each will imply that theirs subsumes the others. None of them do.
The distinction is not really technical. It is a question of where each product is looking. An EDR looks at your endpoints. A SIEM looks at your logs. A threat intelligence platform looks outside your organisation entirely — at the infrastructure attackers are building, the credentials of yours already circulating, the domains registered last week to impersonate your brand. Once you see it as three vantage points rather than three competing products, the buying order becomes fairly obvious.
| EDR / MDR | SIEM | Threat intelligence platform | |
|---|---|---|---|
| Looks at | Endpoints — laptops, servers | Logs from everything you own | The internet outside your perimeter |
| Question answered | Is something malicious running on this machine? | Do these events together mean an attack? | Who is targeting us, with what, and what have they already got? |
| Timing | During and after an intrusion | During and after an intrusion | Before — and after, for exposure |
| Sees a leaked staff password | No | No | Yes |
| Sees a domain registered to impersonate you | No | No | Yes |
| Sees a forgotten server you exposed | Only if agent installed | Only if it sends logs | Yes — that is the point |
| Stops the malware executing | Yes | No | No |
| Needs analysts to be useful | Less so with MDR | Yes, substantially | Yes, or a managed service |
| Typical buying order | First | Second | Second or third |
EDR: the layer you buy first
Endpoint detection and response sits on the machines themselves and watches behaviour rather than signatures. It notices that a Word document spawned PowerShell, that PowerShell reached out to an address nobody has ever contacted, that something began encrypting files in a pattern no legitimate process produces — and it can kill that chain mid-execution.
It is the layer to buy first for an unglamorous reason: it is the only one of the three that stops an attack by itself. A SIEM tells you an attack happened. A threat intelligence platform tells you an attack is coming or that you are exposed. An EDR intervenes. If you have budget for exactly one product and no analysts, buy managed EDR — MDR — and let someone else watch the console at three in the morning.
Its blind spot is everything that is not an endpoint. Your cloud tenancy, your SaaS applications, the router in the branch office, the server your developer stood up last quarter without telling anyone — none of these carry the agent, so none of these are seen.
SIEM: correlation across everything you own
A SIEM collects logs from across the estate — firewalls, servers, identity providers, applications, the EDR itself — normalises them, and applies rules to spot patterns no single source would reveal. A failed login is nothing. Four hundred failed logins followed by one success, then a privilege escalation, then an outbound transfer at 2am, is an incident. Only something holding all four data sources can see that shape.
The honest caveat is that a SIEM is not a product so much as a project. It is worth real money and produces real results, but only once someone has tuned the rules to your environment, decided what is normal here, and committed to working the alerts every day. An untuned SIEM generates thousands of alerts nobody reads, which is worse than no SIEM at all because it creates a documented record that you were warned.
This is why the sequence matters. Buy a SIEM when you have the people, or the managed partner, to run it. Buying one before that is buying a very expensive log archive.
Threat intelligence platform: the view from outside
Both products above are inward-looking. They analyse what is happening inside your estate, which means by definition they only tell you about an attack that has already begun. A threat intelligence platform inverts the vantage point: it looks at your organisation the way an attacker does, from the outside, before anything has been touched.
That produces a different class of finding. Credentials belonging to your staff that appeared in someone else's breach and are now being tried against your systems. A domain registered last Tuesday one character away from yours, with a certificate issued and a login page copied from your portal. A server exposed to the internet that nobody remembers standing up, running a version with a known-exploited vulnerability. Mentions of your organisation on forums where such mentions are precursors rather than gossip.
None of that is visible to a SIEM or an EDR, because none of it is happening on your network yet. That is the entire argument for the category: it is the only layer that can act before the intrusion, and the only one that tells you what an attacker already knows about you.
A good platform also feeds the other two. Indicators it collects — malicious addresses, known-bad hashes, phishing infrastructure — are pushed into the SIEM and the firewall so that your inward-looking tools recognise the attacker's infrastructure the first time they see it rather than the third.
Where the three genuinely overlap
The overlap is smaller than the marketing suggests, but it is real in two places.
Modern EDR vendors bundle their own threat intelligence — their global telemetry across millions of endpoints is genuinely valuable and genuinely counts as intelligence. What it will not do is monitor your brand for impersonation, search breach corpora for your domain, or map the attack surface you exposed outside the agent's reach. It is intelligence about malware, not intelligence about you.
SIEM vendors sell threat-intelligence feed integrations, which is real but is consumption rather than production: the SIEM enriches its alerts with indicators someone else collected. It does not go and find your exposed assets or your leaked credentials.
So the practical rule: if a product's answer to 'what have attackers already learned about us?' is a blank look, it is not doing the threat intelligence job, whatever the datasheet says.
- Buy EDR/MDR first — it is the only one of the three that stops an attack rather than reporting it.
- Buy a threat intelligence platform second if your exposure is external: a public brand, customers who can be phished, staff credentials worth stealing.
- Buy a SIEM second instead if your estate is complex and you already have analysts or a managed SOC to run it.
- Do not buy a SIEM with nobody to tune it. An untuned SIEM is a liability, not a control.
What this looks like for a Kenyan organisation
For a bank, SACCO, insurer or any organisation whose customers can be phished, the external layer earns its place faster than the sequencing above implies. The attacks we see most often against Kenyan financial institutions do not begin on the network at all. They begin with a look-alike domain, a cloned login page, a mobile-money-themed lure, or a set of staff credentials that leaked from an unrelated service where someone reused a password. Every one of those is invisible to an EDR and a SIEM, and every one of them is visible from outside before the first customer loses money.
For a manufacturer, distributor or professional services firm with less public exposure, the classic order holds: endpoints first, then correlation, then the outside view.
In either case, the layers are cumulative rather than alternative. The question is never which one to buy instead of the others — it is which gap is currently costing you most.
Key takeaways
- EDR watches endpoints, SIEM correlates your logs, a threat intelligence platform watches the world outside your perimeter. Different vantage points, not competing products.
- Only EDR stops an attack by itself. Buy it first if you can only afford one thing.
- Only a threat intelligence platform sees leaked credentials, brand impersonation and forgotten exposed assets — none of which touch your network before the damage.
- A SIEM you cannot staff is worse than no SIEM: it documents that you were warned and nobody looked.
- For organisations whose customers can be phished — banks, SACCOs, insurers — the external layer earns its place earlier than the standard buying order suggests.
Frequently asked questions
What is a threat intelligence platform?
A threat intelligence platform, often abbreviated TIP, collects threat data from many external sources, normalises it into one consistent format, removes duplicates, scores what matters to you specifically, and gives security teams a single place to search and act on it. Without one, analysts check each source manually and the intelligence rarely reaches the firewall, SIEM or EDR that could have acted on it. The better platforms also look outward at your own organisation — your exposed assets, your leaked credentials, domains impersonating your brand — rather than only aggregating generic feeds.
Do we need a threat intelligence platform if we already have a SIEM?
They answer different questions. Your SIEM analyses telemetry from inside your network and can only tell you about activity that has already reached you. A threat intelligence platform tells you what attackers are preparing and what they have already obtained — leaked staff passwords, a typosquatted domain, an exposed server — none of which generates a single log line on your systems. In practice the two are complementary: the platform feeds indicators into the SIEM so its alerts arrive with context attached rather than as raw events.
Can a small organisation justify a threat intelligence platform?
It depends far less on headcount than on exposure. A thirty-person SACCO with fifty thousand customers has enormous external exposure and a real case for the category. A three-hundred-person manufacturer with no consumer brand and no customer portal has much less. Ask whether your customers can be phished in your name, whether your staff credentials are worth stealing, and whether you genuinely know everything you have exposed to the internet. If two of the three answers are uncomfortable, the layer is justified regardless of your size.
Is threat intelligence just a feed of malicious IP addresses?
That is the commodity end of it, and buying only that is where most disappointment comes from. A list of malicious addresses with no relevance filtering produces noise, because the overwhelming majority of those addresses will never touch your network. The value is in the parts specific to you: which of your assets are exposed, which of your credentials have leaked, who is impersonating your brand, and which of the thousands of indicators genuinely intersect with what you run.
What does a threat intelligence platform cost in Kenya?
There is no meaningful list price, for the same reason there is none for penetration testing: the number is driven by how many domains and assets are monitored, whether commercial feeds are included, and above all whether you are buying software or a managed service where someone else does the analysis. The honest advice is to be sceptical of anyone quoting before they have asked what your external footprint looks like. Neurobyte scopes NeuroThreat deployments after establishing that footprint, and can deploy privately where data residency or Kenya Data Protection Act obligations require it.
Should we buy all three?
Most mature security programmes end up with all three, because each closes a gap the others structurally cannot. The sequencing matters more than the destination: endpoints first because that layer intervenes, then whichever of correlation or external visibility addresses your larger current gap. Buying all three at once, before anyone is in place to operate them, reliably produces three underused consoles and a disappointed board.