Pre-breach radar

Exposed Data-Stores Radar

We continuously scan the public internet for databases — MongoDB, Elasticsearch, Redis, CouchDB, Memcached, Kibana and more — that are open with no password. No exploit is needed: anyone who finds one can read, copy, or delete everything in it. We detect these passively from Shodan’s public banner data — we never connect to them.

731
Databases open to the internet with no password
8
Database engines affected

Why this is a risk

An open, unauthenticated database is an open door — not a vulnerability that needs an exploit, just data sitting exposed:

  • Anyone can read, copy, or delete the data — customers, criminals, or automated bots.
  • Ransomware crews scan for exactly this: they connect, exfiltrate, wipe the data, and leave a ransom note. The “Meow” attacks destroyed thousands of open databases this way.
  • • It is one of the most common root causes of mass data breaches — no zero-day required.

By engine — and what's at stake

Redis106
typically holds caches, sessions, queues, tokens
ClickHouse100
typically holds analytics & event data
InfluxDB100
typically holds time-series & metrics
Kibana100
typically holds a window into an Elasticsearch cluster
Memcached100
typically holds cached objects & session data
Neo4j100
typically holds graph data & relationships
Cassandra78
typically holds large-scale application data
CouchDB47
typically holds application documents

By country

  • China204
  • United States131
  • Germany71
  • Singapore39
  • France35
  • India19
  • Japan19
  • Russian Federation19
  • United Kingdom18
  • Netherlands17

Are you exposed?

Check whether your infrastructure has an open data store or other exposure — a free, passive scan of your own internet-facing surface, no signup.

Check your exposure →

How it works

How do you know it's actually unauthenticated?

Each engine’s banner only returns server info / data when no auth is enforced (e.g. an open Redis answers INFO; a locked one returns a NOAUTH error). We infer the open state from that already-public Shodan banner — we never connect to or query the database ourselves.

Is this passive and legal?

Yes — it’s read-only threat intelligence over public banner data (the same data class as Shodan, Censys, Shadowserver). We never authenticate, query, read, or modify any database.

Why don't you list the IPs?

Publishing open-database IPs would be a target list for attackers. We keep host details private for responsible disclosure to affected organisations and publish only aggregate counts. (Use the scanner above to check your own exposure.)

Aggregates only. Passive, read-only detection from public Shodan banners; host IPs withheld; affected organisations notified via responsible disclosure.Updated Sun, 07 Jun 2026 12:12:15 GMT.