The number of bitcoin ever to be mined may be capped at 21 million but the total supply will always be less. How much less is a critical valuation metric for bitcoin economists. There are a variety of ways and reasons bitcoin can be taken out of circulation. The purpose of this post is to examine one reason: “burn addresses”.Continue reading ~2 BTC Burned in 2018
There will be winners and losers in the race to become the best bitcoin extortionist emailer. The latest bitcoin scam email campaign looks like it will be one of the losers.
Starting this morning, from U.S. sources, BitcoinWhosWho.com began receiving reports of a fake bomb threat demanding $20k in bitcoin or a “mercenary” would blow up their building. So far no one has paid any of the 15 bitcoin addresses that have been identified. But, it would only take a few people falling for this to make it worthwhile for the scammer.
The email typically states the bomb or explosive device is made of “lead azide”, “Tetryl” or “Hexogen” but also “tronitrotoluene” has been reported.
Notably, the author really wants to be clear that everything is proceeding “according to my guide”. Oh, and BTW, the bomb will go off by the end of the day if you don’t pay.Continue reading Bitcoin Bomb Ransom Fizzled Out: No Payments Made By Deadline
Almost a third of the scam reports came from the United States. Continue reading 42 Countries Report Sextortion Email Scam
Don’t pay it! No matter how convincing inclusion of that old password you used to use makes it seem, they don’t have video of you doing that. Don’t be embarrassed, if you considered paying the ransom email you’re not alone. So far 101 victims have sent 22.67 BTC to 37 of the 176 bitcoin addresses so far reported to be related to the new sextortion with/password scam email variation that first appeared July 10. Reports of previous versions of the same sextortion tactic without the password portion have been reaching us since October 2017. Inclusion of a password is unique over the last three weeks. Continue reading Sextortion With Password Email Scam Variant Makes 22.67BTC Over First 3 Weeks
A new twist on an old trick emerged this week. The porn ransom email claiming to have incriminating video of the recipient which will be released to contacts if not paid in bitcoin, has now included an old compromised password of the recipients in an attempt to add credibility to the scam. Gotta appreciate that dark web creativity. Where did they get all those passwords? The first report of this new variant was received July 10. Since then dozens more reports have come in relating to just over 2 dozen bitcoin addresses as of Friday. This address has been reported 9 times and also has the most total received at 2.83 BTC:
When reports of this email scam first started appearing last September the perpetrators were discovered to be using a Matbea wallet. That appears to have changed. On May 30 every output transaction from hundreds of reported blackmail scam addresses went to a Poloniex wallet address.
These bitcoin addresses were reported as scams related to the porn blackmail email:
Each of them shows an output to 1E2J2DAFGToqmTxK5H8fG6V3Tp3xqSiAm4 on May 30, 2018.
A quick investigation shows 1E2J2DAFGToqmTxK5H8fG6V3Tp3xqSiAm4 is among the Poloniex wallet cluster.
There is strong evidence to support either thesis. Bitcoin Pizza Day is May 22. No better time to review the evidence. Whose pizza is worth $98 million today?
Eight years ago “Jercos” sold “Laszlo” 2 pizzas for 10,000 BTC. It was the first transaction in bitcoin history for an economic good or service. At the time 1 BTC was $USD00.08.
Continue reading The First #Bitcoin Transaction; Was it for two @dominos or @PapaJohns #pizza?
300 Canadians conned out of 44 BTC in tax debt collection scam.
BitcoinWhosWho received multiple independent reports of scammers posing as Canada Revenue Agency “CRA” agents demanding payment of taxes in bitcoin. Tax payment deadline was yesterday in Canada.
The most active CRA scam bitcoin address was by far
1GVD8Y9473Lxm2ngdKW5P5M1uazDtGMRFo with 259 total payments worth CAD$284,550.
Based on all reported bitcoin addresses, in total, the CRA scammers conned at least 295 victims out of 44.47594323 BTC or CAD$513,550.
Selected Victim Accounts Continue reading 44 BTC Made By Canada Revenue Agency Tax Collection Scam
BitcoinWhosWho received dozens of reports over the last few days from multiple independent sources about a cloud mining scam called Crypterra finally exiting the building. The total received for all the 40 bitcoin addresses reported so far is 2,483.008684 BTC.
Continue reading 2500 BTC Crypterra Exit Scam Reported
Reports of a spam email threatening to reveal sensitive adult content to friends and family unless paid in bitcoin have been surging over the last few days. This bitcoin address was reported twice today alone! 1LEBKnvLEZk2cUfyJ1vU5FpueakWyh4m28
For the last 6 months BitcoinWhosWho has received scam reports relating to some version of an email claiming to have used the recipient’s computer to create a video of recipient visiting adult websites and threatens to send it to recipients’ contacts if not paid $200-$400 in BTC within 20-24 hours. It comes in many languages and has made consistent appearances in our scam reports since October 2017.
SEXTORTION EMAIL SCAM VARIANT MAKES 22.67BTC OVER FIRST 3 WEEKS – July 26, 2018
I KNOW YOUR PASSWORD BITCOIN EXTORTION EMAIL VARIANT– July 13, 2018
BITCOIN PORN BLACKMAIL SCAM MOVED TO POLONIEX WALLET– June 2, 2018