Nero Security

Nero Security is being built for coast guard, port and maritime authorities, and the agencies that work with them. It will register every vessel at anchor and flag the ones outside designated anchorages, measure each area against its own normal, count AIS silence only when nearby vessels were still heard, resolve renamed and re-numbered vessels into one history, and flag meetings at sea and fishing in closed waters. Findings become case files for prosecutors. Every judgment rests on behavior, never on flag or nationality.

Discuss early access How we decide

In development. Scope and timing are not yet committed.

See the activity that stops short of an incident

NeroNero SecurityDemo areaLast 24 hSimulated18:14:07Z

Activity events4

Loitering group · 6 vesselsWatch

Drifting together below 1 kn
AIS gap · 2 h 54 minWatch

Nearby vessels still heard: counted
Meeting at sea · 2 h 30 minWatch

0.12 NM apart at closest
Dredging-like patternWatch

0.1 NM outside the permit
Context · status contradicts movement

Reports at anchor while moving at 3 kn: context only, never a level on its own

AreaAREA-2

Window: 24 h
Events: 4
Episodes: 11
Flag weight: 0
Source: AIS

Built for

Coast guardPort authorities and harbor mastersMaritime administrationsNavy and defenseFisheries agenciesCustomsProsecutors and maritime investigators

NeroNero SecurityDemo areaDaily events · area 218:14:07Z

What is planned

Anchoring out of bounds

Every vessel at anchor: where, since when, and whether it is inside a designated anchorage. An alert, with reasons, when one anchors outside them, in a no-anchoring area or over a charted cable or pipeline.

Approaches and restricted waters

Vessels that stop or loiter in approach channels, and entries and stops in restricted and prohibited waters, including around outlying islands. Berths and anchorages are context, so moored ships stay quiet.

Area baselines

Daily activity in each area against its own normal range, so a surge or a new concentration of vessels stands out.

Ships going dark

AIS silence counted only when nearby vessels were still being heard; gaps in our own reception never count.

Identity deception

Renames across Traditional and Simplified script, shared or swapped numbers, and status that contradicts movement, resolved into one history per hull with the evidence for every link.

Meetings at sea and smuggling patterns

Two vessels that close up, run alongside or stop together away from port, with the duration and closest distance: the pattern behind most transfers at sea, described as consistent with a transfer, never as intent.

Illegal fishing

Fishing speeds and turns inside closed or protected areas, and trawling speeds in no-trawl zones. Gear is classified first, so it is never scored as a vessel.

Dredging-like patterns

Back-and-forth movement at dredging speeds outside the permitted area.

Case files

Findings become Investigations reconstructions and evidence packages built for prosecutors.

Area baseline · planned

Every area, measured against its own normal

Activity in the same waters rises and falls with the season, the weather and the day of the week. Nero Security first learns each area's normal range, then marks only the days outside it, with the vessels and what they did.

Anchorages and approaches · planned

Anchorages, the approach and the cables, on one plan

Designated anchorages, the approach channel, the pilot boarding point and the no-anchoring areas come straight from the port's own rules. Vessels at anchor are registered by anchorage, and one anchored outside them is listed with its reasons.

Quays and cranesBreakwaterApproach channelAnchorage A1Anchorage A3Anchorage A2Cables · no anchoringDemo vessel M · anchored on cables

Quays and cranes
Breakwater
Approach channel
Anchorage A1
Anchorage A3
Anchorage A2
Cables · no anchoring
Demo vessel M · anchored on cables

凝瀚Anchorage registerIn development

Anchorage	At anchor	Longest stay	Note
A1	6	31 h	Within the seasonal normal
A2	4	12 h	Within the seasonal normal
A3	2	5 h	Within the seasonal normal
Outside anchorages	1	2 h 10 min	Watch In a no-anchoring area, over cables

Anchorages and no-anchoring areas come from the port's rules; stays are compared with what is normal for the season.

Pattern library

Six behaviors that stop short of an incident

Each pattern is built from fixed behavior indicators. Dredging, for example, scores nothing inside a permitted area; only dredging speeds and passes outside it count.

A sand dredger at work beside a sand bank, seen from directly above

Anchoring out of bounds
Anchoring out of bounds
At anchor inside a protection zone where anchoring is not allowed, with the time building up.
Position · time at anchor · zone
Loitering group
Loitering group
Several vessels circling slowly in one small area for longer than routine work takes.
Dwell · extent · vessel count
Meeting at sea
Meeting at sea
Two vessels close up, run alongside or stop together away from port, then part: the pattern most transfers at sea leave.
Duration · closest distance
Going dark
Going dark
Signal lost and found again far away, while nearby vessels were heard throughout.
Gap length · displacement · nearby reception
Fishing in closed waters
Fishing in closed waters
Fishing speeds and turns inside a closed area; gear is classified first and never scored.
Speed · turns · area
Dredging pattern
Dredging pattern
Back-and-forth runs at dredging speeds outside a permitted area.
Speed · passes · area

From the anchorage to the case file

Every vessel at anchor and on the approach, accounted for

Nero Security is designed to register every vessel at anchor, how long it has stayed and whether it is inside a designated anchorage, and to list the ones anchored outside them, in a no-anchoring area or over cables, with their reasons. Ships moored or anchored in their proper places stay quiet.

NeroNero SecurityAnchoragesDemo anchorage A18:14:07Z

A bulk carrier alongside a quay with cranes, seen from the air

Demo anchorage A · live

At anchor: 14 vessels
Outside designated area: 1 · Watch
Longest stay: 31 h
In no-anchoring areas: 0

Anchorages and no-anchoring areas from the port's own rules
Stays compared with what is normal for the season

Two vessels, one position, no port

Nero Security is designed to flag two vessels that stop together away from port, with how long they stayed and how close they came, and to keep both identity histories with the record. Smuggling and transfers at sea usually leave this pattern; the judgment stays with the agency.

NeroNero SecurityMeetings at seaArea 4Simulated

Duration: 2 h 30 min
Closest: 0.12 NM
Speeds: 0.6 kn · 0.5 kn
Flag weight: 0

Duration and closest distance
Described as consistent with a transfer, never as intent

Fishing where it is not allowed

Nero Security is designed to measure fishing patterns against closed and protected areas: a vessel showing fishing speeds and turns inside one is flagged with the area and the time, while boats fishing outside them stay at monitoring.

NeroNero SecurityFishingIllustrative closed areaSimulated

Demo vessel F4 · inside the closed area

Speed: 2.6 kn · frequent turns
Time inside: 1 h 40 min
Pattern: Consistent with fishing
Level: Watch

Closed and protected areas from the authorities' own notices
Gear classified first, never scored as a vessel

The same hull under a new name

Vessels that change names between Traditional and Simplified script, swap numbers or share them are resolved into one identity history, with the evidence for every link.

NeroInvestigationsDossierDemo vessel B18:14:07Z

Demo vessel B · identity history

2019-03First seen as 示範海辰 6 號 (SHIFAN HAICHEN 6), ID SIM-1001Source: raw messages in sealed daily files
2021-08Renamed 示範海辰六號Same ID, type and dimensions: a rename, not a different hull
2022-01ID SIM-1001 reported at two positions too far apart to be one vesselSplit into two identities, pending review
2023-05Simplified-script spelling 示范海辰六号 appears in a second sourceMatched across Traditional and Simplified script
2024-11Switches to ID SIM-1002Name, type and dimensions match; confidence: medium

Names across scripts, and renames
Uncertain links are marked as pending

Known limits

What Nero Security will and will not do

Approach & Limits

It judges behavior only. Flag, nationality and ownership carry no weight; a number that contradicts the declared flag is an identity question, nothing more.
Vessels that do not transmit AIS need radar or other sensors; AIS alone cannot see them.
It describes what the data shows and never infers intent. Whether something is smuggling or illegal fishing is for the agency to decide.
Area baselines need weeks of history before they mean anything, and each one states its period.

Works with Investigations

Every finding can become a reconstruction and an evidence package, with the data already sealed.

Explore Investigations

NeroInvestigationsTrack replayDemo eventSimulated

21:22

23:38

Common questions

Why behavior and not flag?

Because behavior can be shown, and it holds up before a court and the public. A flag or a nationality says nothing about what a vessel did.

Can it run on our own radar, AIS base stations and records?

That is the design. Each source comes in through its own connector with a license tag, data you share is used only as agreed, and deployment is discussed with each agency.

Where would our data be kept?

Partner data will be stored and processed in Taiwan.

How is this different from Cable Watch and Offshore Guard?

Cable Watch and Offshore Guard protect specific assets. Nero Security watches whole areas, ports and anchorages, and the patterns across them.

Is it available now?

Not yet. Nero Security is in development, and its scope and timing are not yet committed. We welcome early conversations with coast guard, port, fisheries and defense agencies.

Become a pilot partner

We are seeking a small number of cable and offshore wind operators as partners for the first pilot deployments. Inquiries in English or Chinese.