I will accept donations at 1MLSW1nmYkHqaHWNNkHSAHct6exd8fYYLX. Thanks!

wait, so what % of the total bitcoin has actually been stolen? :-)

Understood, but some (wide) estimate would still be useful. We can probably assume that a good deal of stolen coins were cleaned and then hoarded or converted to fiat, and thus not subject to resteal.

I think it's important to have some sense of the total # of coins likely still in the hands of scammers and thieves. The idea of bitcoin becoming increasingly value when such people own a significant percentage of all coin is quite distasteful. I think I could live with 5% of all bitcoins in such individuals' hands. Over 10% and I start to consider that a huge negative in the economy.

(edit: just shipped you a tiny donation....appreciate the comprehensive list)

May want to add a total to all thefts in your OP.

This may be an interesting indicator as to what amount of bitcoins are in the hands of the rest of the community.

Similar to the method in which I am treating Pirate, thefts of vapour-Bitcoins cannot be included.

Excellent list. Thank you!

I have a proposal on how to try to stop bitcoin thieves after the fact. https://bt.irlbtc.com/view/110749.0 Please discuss give input there.

I know the proposal is not new in principle. If we want to implement it or something like it, we need to get the community talking about it and asking for it.

Thanks.

I have a plan for improving this list in the near future. First, I have to sort out the BS&T mess and the Kronos.io hack (which, by the way, I still do not have a date for). After that, I should begin some systematic reanalysis of each theft to revise the estimates into better ones if possible. To aid this, I am planning on an accuracy scale for the estimates:

Scale Category	Definition
Level 0	Exact amount given by official source, third involved party, or blockchain analysis; almost universally accepted. Appropriate references must be included: One reference from an official source, third involved party, or blockchain analyst revealing the approximate amount. One reference from that source, could be the same as the previous, mentioning the exactness of the amount. If the source is a blockchain analyst, two additional reference from a third party confirming the blockchain analysis. Depending on the reliability of the main source, a third party confirmation could be required. This can be one reference from another type of source, types given below, that outlines a value confirming or supporting the main source. Official source Third involved party Blockchain analyst
Level 1	An approximate amount obtained from official source, third party, or blockchain analysis. Amount should not be, within a reasonable doubt, off by over 5%. The following references must be given: One reference from an official source, third party, or blockchain analyst revealing the approximate amount. One reference from that source, could be the same as the previous, mentioning the level of error expected should be low. If the source is a blockchain analyst, one additional reference from a third party confirming the blockchain analysis.
Level 2	Both a lower bound and an upper bound obtained from official source, third party, blockchain analysis, or my personal analysis. The upper and lower bounds should be, within a reasonable doubt, absolute. The upper bound should not be more than three times the lower bound. The following references should be given for each bound, unless it is determined through personal analysis, in which the appropriate references backing the personal analysis must be given: One reference from an official source, third party, or blockchain analyst revealing the bound. One reference from that source, could be the same as the previous, mentioning the absoluteness of the bound. If the source is a blockchain analyst, one additional reference from a third party confirming the blockchain analysis.
Level 3	Only an estimate is obtained from the official source, third party, blockchain analysis, the media, or my personal analysis. Up to one absolute bound is known, but not two. The upper bound should not be more than three times the estimate, or the estimate should not be more than three times the lower bound, if a bound is known. The following references should be given for the estimate, unless it is determined through personal analysis, in which the appropriate references backing the personal analysis must be given: One reference from an official source, third party, blockchain analyst, or media source revealing the estimate. If the source is a blockchain analyst, one additional reference from a third party confirming the blockchain analysis. If an absolute bound is known: One reference from an official source, third party, blockchain analyst, or media source revealing the bound. One reference from that source, could be the same as the previous, mentioning the absoluteness of the bound. If the source is a blockchain analyst, one additional reference from a third party confirming the blockchain analysis.
Level 4	No reliable estimate is known, so one is calculated through a third party or personal analysis. Up to two bounds are known, but they may be far apart. No references are required, however, methodology should be present if no references are included.

Thoughts?

Done.

Possibly JRO and his two great vapour-ware assets Rebate and ZIP.A could be included.

Add BitMarket.eu to the list.  From another thread:

  [Edit: Fixed the link to the quote.]