The title of the book sets the expectation that it will be about how the tech industry washes money for the deadliest crooks.
While he does spend some little time describing how the tech industry washes money, in chapters about bitcoin and mixers, the treatment is short and superficial.
Instead, he spends the majority of his time sensationalizing about the crooks and how they got the money they washed. At one point of time, he goes into unnecessary and irrelevant detail about sex trafficking and prostitution - what was the relevance of it, one wonders, other than to sensationalize the topic? We get it, they are crooks. Washed money comes from shady sources. But was that the point of the book? From the title, one hopes to learn "how" the tech industry washes money, not how the cartels get money they wash in the first place. There are plenty of literature dedicated to the latter topic that one can read.
Then a lot of the treatment about "how the tech industry washes money" is stretched really far. Crooks use whatsapp and signal - hence tech industry. With such weak linkages, one might even write a book "How car manufacturers enable heists", or "how the postal service helps wash money".
Lastly, he spends a lot of time giving his geopolitical opinion on things that have nothing to do with how the tech industry washes money. For example he goes on and on about how Korea is an evil empire - and I don't have to defend Korea and there is plenty of legit criticism - but is that really relevant?
He talks about Korea's nuclear weapon and how it is a danger to the world. It is. But is it relevant? And while at that, Korea has not invaded any other country (unlike the USA), nor has Korea dropped nuclear weapons on any other country (like the USA). Also, it is astonishing that the author spends so much time talking about Korea and how it earns money by embezzlement, without once going into the reasons why it has to resort to such difficult methods to earn money rather than simply raising revenue by printing money and taxation like any other economy. The reason they have to resort to do that is because first, the USA bombed North Korea to stone age, so much so that American Pilots were commanded to continue bombing the place even after they reported that there is nothing left standing to bomb. After the truce, the USA imposed sanctions on the country crippling its economy, and forcing it to indulge in some pretty wild schemes to get revenue, which no state would have resorted to if it had any choice to do otherwise. One would have liked it better if such a one-sided portrayal was attenuated by some treatment of why Korea does what it does and its roots in history and economics of empire.
Another example of such unnecessary geopolitical half-truth is the allegation that Russia doesn't crack down on its cybercriminals because cybercrime generates a few billion dollars, and that feeds into Russia's economy. Sounds good, till you realize that Russia's GDP is 2.5 trillion, a few billion are a drop in the ocean and no reason for any state to not crack down any crime. While it is quite possible that Russian authorities do not clamp down on cybercriminals, it could be for a variety of reasons, but the claim that they dohn't do it because it feeds into the Russian economy sounds facetious.
After reading the book, I even started wondering: why are all the countries he talks negatively about incessantly the same countries the USA has sanctioned? Especially when the criticisms of those countries (some of which are valid) have nothing to do with the title of the book?
Avoid reading. Save your money.