"Grandpa? I'm scared. I'm in London and my wallet was stolen. The hotel says they'll have me arrested if I don't pay right away, and my passport is gone. Can you help me?"

That was an actual call I received years ago. I have no grandchildren, and I know the scam, so I played along to see what the lie was after. In this case: $1,500. Small enough not to alarm an unsuspecting grandparent, delivered in a quivering voice built to short-circuit judgment and go straight for sympathy.

That's a parasite at work: trust, borrowed and then stolen. Bullies want to be seen. Parasites need the opposite, and once you can name their techniques, most of their power is already gone. We catalog twelve of them in the book. This piece walks through all twelve, grouped so they're easier to spot the next time one shows up in your week.

Three things make parasitic extraction different from a bully's theft: it hides, it needs your trust, and naming it is most of the defense.

Parasites steal by stealth. They skim, misdirect, bury the theft in fine print, and hide behind respectable titles. A biological definition of parasitism describes a long-lasting relationship that harms the host while the parasite draws its nutrients from it, and the researchers who study it are careful to say human exploitation doesn't literally meet that biological test. We use the word as a name for a pattern, not a species. The pattern is real either way.

Every parasitic technique needs the victim not to notice, at least not enough to complain. That's the mechanism, and it's why stealth outlasts force. A bully gets resisted the moment the taking is visible. A parasite gets tolerated, one small charge or one convincing lie at a time, until the sum of it is enormous and nobody can point to the exact moment it happened.

Most people can spot a bully. Fewer can spot a parasite, because the whole design depends on looking legitimate. Naming the mechanism is the first defense against it. Once you know what skimming looks like, or what an evil law is dressed as, you stop mistaking it for bad luck or your own carelessness.

Twelve techniques, sorted into three families by what they hide behind: a fee, a story, or noise.

These three hide inside a bill. Skimming is fractional theft, small enough per instance that nobody notices, repeated until it becomes real money. We know of one bank programmer whose job was to maintain the software computing interest on customer accounts. Because the math often landed on fractions of a cent, he diverted every fraction into his own account. Nobody noticed, because every statement was still accurate to the penny, until the size of his personal account drew an auditor's attention. Millions had piled up before he was caught.

Hiding takes a quieter shape: not vanishing, but blending in. A disguised or misstated interest rate. A renewal fee for a subscription nobody renewed. A surcharge added to a bill without asking. Fine-print terms nobody reads until they're invoked. The Consumer Financial Protection Bureau runs an entire initiative aimed at exactly this category, and its own research found that roughly 26.5% of households paid an overdraft or insufficient-funds fee in a single year, plenty of them from people who didn't expect the charge at all.

Some of these hidden charges stay small enough to be an irritation. Others don't. A $25 aspirin on a hospital bill. $700 for a vial of insulin that costs a fraction of that to make. A $150,000 medical procedure, later denied by an insurer because a preapproval step nobody explained wasn't filed in time. The size of the number doesn't change what's happening. It changes whether you notice.

Embezzlement is hiding's older, larger sibling: a trusted position used to quietly divert someone else's money. One of us had a great-grandfather, by family account, who retired at 45 and rode the train into the city each day to manage his own investments. In his nineties, dementia set in and he moved into a care facility. When he died, the money was gone. Nobody could say exactly who took it, a broker, a caregiver, someone with access and opportunity, but it was gone, and that's not a rare story among the elderly and the impaired. Trust is the exact thing embezzlement needs, and it's the exact thing an aging or vulnerable person has the least ability to police.

These four hide inside a story. Lying has a subcategory blatant enough to earn its own name: the impersonation scam, usually aimed at the elderly, the young, or the simply distracted. The "Nigerian prince" email. The dying widow overseas. The frightened grandchild who never existed. The urgent bank "fraud alert" that is itself the fraud. If it sounds too good, or too urgent, to be true, it is. Talk to someone before any money moves, every time, no exceptions.

Conning has a milder, everyday cousin. "Con man" is short for confidence man: someone who earns trust, then spends it. The simple version is a promise never kept, a roof never fixed, a wage never paid. The Department of Labor's wage complaint process exists because withheld wages are common enough to need a standing government process, not an exception.

Conspiracy comes in two forms. Coordinated protection, where people in power quietly coordinate to protect that power, sometimes through laws crafted specifically to make the coordination legal. And constructed reality, built by people who know it's false and spread further by people who sincerely believe it, until the fiction becomes the frame everyone else has to argue inside. Both versions end the same way: when accused, the architects of the false reality often claim they're the ones being conspired against.

Begging is the gentlest technique on the list, and the easiest to misjudge. Most people asking for help are genuinely stuck, and deserve it without question. But a begging parasite plays the same role professionally, extracting sympathy from one source until it dries up, then moving to the next with the same practiced story. The tell isn't the ask. It's the total absence of any effort to stop needing to ask.

These five hide inside noise. Misdirection is the pickpocket's trick, scaled to an institution: distract with one hand, take with the other. Numbing dulls judgment just before a decision matters, a free sample, a complimentary upgrade, a friendly greeter, all arriving right before a signature is needed. None of it is generosity. It's a discount on your attention, purchased in advance.

Distraction works two ways: a manufactured threat, built up until it consumes enough attention that ordinary reality gets denied or drowned out, and entertainment, something enjoyable that occupies you while a theft goes past unnoticed. Around 100 CE, the Roman satirist Juvenal mocked his own city for trading its political attention for free grain and gladiator spectacle. Today's version runs on screens instead of an arena floor, and it also runs on your data now. An FTC staff report on major social media and video-streaming platforms found the companies studied collected extensive personal information, sometimes on people who weren't even users, and monetized it mainly through targeted advertising.

Evil laws are the most insidious technique on the list, because they wear a badge. We file them under parasites rather than bullies, because while they serve both, they hide behind the appearance of legitimacy: government imposed without the consent of the governed, laws that criminalize criticizing those in power, taxes written in ways that favor the people already positioned to avoid them, laws that once made it a crime for one group of citizens to drink from the same water fountain as another. A law nobody notices is a law nobody challenges. That's the whole design.

Line up the twelve side by side and one purpose runs underneath all of them.

Every technique on this list exists for the same reason: to move money, attention, or trust from you to someone else without you feeling robbed enough, in any single moment, to complain.

None of these twelve techniques are new. What's changed is delivery speed and scale. A grifter used to need a train ticket and a good suit to run a con on one town at a time. Today the same lie reaches thousands of inboxes at once, and the surveillance-pricing infrastructure behind modern distraction can tailor the pitch to your own browsing history before you've finished reading it. A separate, ongoing FTC pricing study found that data like your location, browsing history, and even mouse movements can feed into the price you're shown.

The techniques overlap constantly, which is exactly why naming them separately matters. A single scam can run a lie, a hidden fee, and a manufactured deadline all at the same time. Once you can label the individual pieces, the combination stops looking like bad luck and starts looking like what it is.

Twelve techniques boil down to three things worth remembering.

That's what makes stealth more durable than force. A bully gets resisted. A parasite gets tolerated, one small charge at a time, until the sum of it is enormous and nobody can point to the exact moment it happened.

None of these twelve require a mask or a getaway car. Most of them require nothing more than your inattention, which is the one resource they can always count on being in surplus.

Once you know what skimming looks like, or what an evil law is dressed as, you start checking your own statements, contracts, and assumptions the way you'd check a lock.

Naming the mechanism only helps if you use it. Here's how.

Twelve techniques, three families, one purpose: moving what's yours to someone else without you noticing enough to stop it. None of it requires a weapon. Most of it requires only your attention, kept just busy enough to miss the moment the taking happens. Naming the mechanism is the first defense against it, and it costs nothing but paying closer attention to what you already have in front of you.

We built the full field guide, all twelve techniques with more examples than fit in one article, into a free chapter. Join the newsletter and we'll send it to you.

This piece draws on the following.