I’m writing this after my third coffee — yeah, that one that the desk suddenly left lighter as if your coffee left an alternate reality hole next to the double computer screens and there’s another hole where you clearly saw everything that could happen in cybersecurity, but AI-powered DLP, it’s one of the things I‘ve been wrestling with since DefCon, and three bank upgrades for zero-trust work. It’s a game changer. Not the sort of thing you see touted all over, but actual material, in-the-trenches effective.
In the day, before my days, when I was hired as an initial-by-wrangling network admin in 1993 who had to support voice and data mux over PSTN, DLP wasn’t a thing. It was essentially using rules and signatures to watch mail and file transfers, like your grandma’s old firewall rules. You’d write policies like you were constructing a roadblock — but for hackers? They had already been digging tunnels below.
Legacy DLP is based on rules, and static. It searches for key phrases, file types, patterns that it was ordered to search for. If it doesn’t … see just what it expects, it lets stuff pass it by (happened in the Slammer worm days … some Signature-based defenses couldn’t keep up, so they didn’t see an exact match and then the traffic passed on through). Sure, you can set up and adjust (and adjust, and adjust), but ultimately, false positives drive users around the bend or false negatives leak data.
AI-powered DLP is instead like an experienced customs officer with a gut feeling. It adapts over time to the normal behavior of a user or set of data flows, and is able to detect deviations rapidly, without relying entirely on pre-established rules.
Here’s the thing. AI DLP leverages:
I am skeptical — always — of the term AI-powered plastered on marketing slides. But we have deployed this and tested it with a handful of our customers, and I can tell you: AI in DLP moves the needle in ways a traditional system just can’t.
Machine learning is not a magic nor miracle silver bullets. That’s a process — it’s like tuning a race car engine for a certain track, and must be refined and monitored by experts.
The models feed on mountains of data:
Then they set up what ‘normal’ looks like and raise the flag at deviations. For instance, if a user begins exporting gigabytes of sensitive financial data in the middle of the night, a traditional DLP rule would not recognize this if it is an acceptable file type. However ML picks out this outlier very quickly.
From deploying DLP based on machine learning in three major banks, I discovered:
I have seen deployments that rely on vendors such as Symantec DLP, which recently added ML models to their analysis engine, Forcepoint’s adaptive analytics, or the upstart Digital Guardian, which combines endpoint telemetry and AI to illuminate sneaky exfiltration techniques.
All three vendors come with powerful AI capabilities, but here’s what you really need to know:
It’s when AI DLP turns futuristic and cool with predictive analytics. Instead of simply responding to threats, you end up with a system that is able to predict risks before they exist. It’s kind of like predictive maintenance on a car.”
It just seems to me that predictive analytics is helpful in the following ways %%MDASSML%% from my point of view.
For instance, one of the banks I was working with had a “data” team use predictive analytics to highlight departments that had sudden inexplicable spikes in the amount of data being moved around during shiftwork from their homes (uncovering a misconfigured cloud backup script was exfiltrating data).
In that context, AI is not so much your guard dog as your early warning system.
But caveat: predictive is only as good as the data you put into it. Garbage in, garbage out. So, the integration with other security feeds — SIEMs, endpoint detection, IAM — is critical. AI-powered DLP is not a silo.
Deploying AI-enabled DLP is akin to adding a souped-up engine to a vintage automobile. It’s thrilling but requires planning.
Here’s a workable game plan I suggest after years on the front lines:
So yeah. Nothing works on the first try.
If rule-based DLP is still instrumental to your approach think on this:
And while you are still fighting with rule-based DLP, hackers are using AI to outmaneuver you. Time to fight fire with fire.
And don’t even get me started on password policies there — if your pwds are still Rule1, Rule2, Rule3, AI or not, you’re simply asking for it. But that’s a rant for another day.
Looking into the future, the DLP world will change significantly. AI won’t put human analysts out of business — but it will become their indispensable sidekick. Vendors will continue to stack NLP (natural language processing) and behavioral biometrics for better context-awareness. Cloud-native AI DLP app lies will mature, especially once the data begins to move off-prem.
But I’m here to tell you: Over the next five years, AI-powered DLP will not only detect data loss – it will actively stop it ahead of time by stitching real-time responses together across hybrid environments. I mean automation of quarantines, identity throttling, geofencing sensitive data access, and beyond. The future of security will be hyper adaptive.
Is AI the silver bullet? No.
It’s the game changer that will keep your data secure in a world of smart adversaries. Absolutely.
(For context: I’ve been doing this since the days of molasses-dialup and feared Slammer worm outbreaks — take it from me, turning the corner and embracing AI in DLP is the next gear to shift if you want to keep your corporate crown jewel data secured.)
Until then, keep your engines running and your defenses smarter than the opponent’s attacks.
Sanjay Seth
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