Early access: the directory is still filling out, and every rating here is a reported experience.
NR Unrated
Block.io
Block.io HackerOne
2 more reviews needed for a grade
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Found a vulnerability?

If you would rather not deal with the vendor yourself, a BugRater analyst will submit it upstream on your behalf, with your explicit permission, and tell you what came back.

Ask BugRater to submit it

Private. The report body is encrypted at rest; BugRater holds the key, so the analyst working it can read it. Every read is logged.

Program metrics HackerOne · published

HackerOne’s own figures for this program, read from its public page, not reported by researchers and not part of the BugRater grade. Captured 4 Oct 2026.

What it pays, by severity

Critical no reports on record
High no reports on record
Medium no reports on record
Low no reports on record

$10,000 paid to researchers in total. Lifetime figure as HackerOne prints it: evidence this program has paid, not a promise about any one report.

Intake & responsiveness · last 90 days

Reports received
0
in 90 days
Resolved
42
all time, last one 11 years ago
Participants
31
hunters engaged
Response efficiency
not published
HackerOne’s figure
SLA misses
0
targets missed
Reports received · day by day, last 18 days 0–0
4 Sep 0 reports 4 Oct

Response targets it sets itself

First response
1 day
Triage
2 days
Bounty
30 days
Resolution
30 days

A target the program declared, not a measurement of it being met.

Getting in the door

bounty amounts hidden submissions disabled

Over 45 days (97 snapshots): no change on the figures worth watching.

Reviews

1 published
Hacktivity: Block.io (3 disclosed)
★★★★★ negative

Source: HackerOne Hacktivity (public disclosures) Program: https://hackerone.com/blockio Disclosed reports analyzed: 3 Bounties: none in disclosed reports --- Aggregated from publicly disclosed HackerOne reports. Ratings derived from triage timing and bounty data.

via HackerOne reports 3 resubmit no
Anonymous researcher · Oct 1, 2026 · Share ↗ 0 helpful
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Who this program credits

31 credited

Researchers HackerOne shows on this program’s public thanks list, best position first. “Recognised” is how many of a hunter’s submissions the program accepted; the ratio is their signal here, not our judgement of them.

# Researcher Reputation Recognised / submitted
1 shahmeeramir 139 5 / 17 29%
2 exploitprotocol 103 4 / 4 100%
3 ashesh 73 1 / 4 25%
4 itest 64 2 / 2 100%
5 mrrm 56 3 / 3 100%
6 jwetzels 50 0 / 1 0%
7 horsey 38 1 / 2 50%
7 insomniac 38 1 / 5 20%
9 paramdham 33 1 / 2 50%
10 mikebrooks 32 0 / 0
10 ohnoozz 32 1 / 1 100%
12 atom 30 2 / 3 67%
13 ahmedhassanawan 23 1 / 2 50%
14 dorks 22 1 / 1 100%
14 jackds 22 1 / 1 100%
14 t00r 22 1 / 1 100%
14 talko 22 1 / 1 100%
18 huzaifa_jawaid 20 2 / 14 14%
19 user_name2023 19 2 / 2 100%
20 cipher0x30 17 1 / 1 100%
20 ethical_hacker 17 0 / 2 0%
22 hackerox1 13 1 / 5 20%
23 hammadshamsi 11 1 / 8 13%
24 defmax 7 1 / 1 100%
24 maverickrocky02 7 1 / 1 100%

Showing the top 25 of 31 credited on HackerOne.

Program profile HackerOne · imported

Facts published by HackerOne on the program's own page, not reported by researchers, and not part of the BugRater grade. Last checked 1 Oct 2026.

The simple Bitcoin/Dogecoin/Litecoin API & Wallet.

Swag
No
Currency
USD
Submissions
Disabled
Launched
Nov 2014