{
  "slug": "keyless-relay-car-theft",
  "question": "What are the odds of having your keyless car stolen by a relay (signal-amplification) attack?",
  "category": "crime",
  "tags": [
    "travel",
    "digital-fraud",
    "household"
  ],
  "no_reliable_estimate": false,
  "perceived": {
    "description": "No published survey measures fear of relay or signal-amplification car theft specifically. The closest signal is heavy UK news coverage and insurer marketing through 2024 and 2025 framing keyless cars as trivially stealable from the owner's driveway in under sixty seconds, alongside Home Office statements that more than one in four UK vehicles carry vulnerable keyless entry. Owners of keyless premium models in UK cities express the sharpest worry; some Range Rover variants became hard to insure in London. The intuition most owners hold is that a keyless car parked outside overnight is at appreciable, recurring risk of electronic theft, with the fear concentrated in the UK and continental Europe rather than the US.",
    "rough_estimate": "Many UK keyless-car owners intuit something like a 1-in-10 chance over the life of the car",
    "kind": "intuition"
  },
  "native": {
    "display": "~0.65% of keyless UK vehicles per year (electronic theft, relay-led)",
    "numerator": 65,
    "denominator": 10000,
    "unit": "per year",
    "population": "Keyless-entry vehicles in the UK"
  },
  "normalized": {
    "lifetime_us_adult": 0.075,
    "display": "~1 in 13 over ~12 years of owning a keyless car in the UK",
    "log_value": -1.12,
    "assumptions": "Subgroup: a UK resident who owns a keyless-entry vehicle, over a ~12-year ownership horizon (matching the UK average vehicle age). The UK records roughly 130,000 vehicle thefts a year (RUSI reports 136,396 across the UK in 2022-23; secondary summaries of ONS police-recorded data cite ~121,825 for England and Wales in the year ending March 2025 — that specific count was not confirmed on a primary ONS page and is treated as approximate). Of whole-vehicle thefts, the ONS Crime Survey attributes roughly half to manipulating the key-fob signal: 57.6% in 2023-24, falling to 46.7% in 2024-25; take ~50%, giving ~65,000 electronic (relay-led) thefts a year. The Home Office estimates over 27% of UK vehicles have vulnerable keyless entry; against a vehicle base of roughly 36 million that is ~10 million keyless vehicles. Annual per-keyless-vehicle electronic-theft rate ~= 65,000 / 10,000,000 = 0.0065. Compounded over 12 years: 1 - (1 - 0.0065)^12 = 0.075, about 1 in 13. log10(0.075) = -1.12. Bands are wide because the CSEW method-share is victim-reported (owners often cannot say how the car was taken) and swings ~11 points year-to-year, and because relay is the lead method within a broader electronic-theft category that also includes CAN-injection and key cloning.",
    "uncertainty": {
      "low": 0.03,
      "high": 0.15
    },
    "scope": "subgroup_lifetime"
  },
  "sources": [
    {
      "url": "https://www.ons.gov.uk/peoplepopulationandcommunity/crimeandjustice/bulletins/crimeinenglandandwales/yearendingmarch2025",
      "title": "Crime in England and Wales: year ending March 2025",
      "publisher": "Office for National Statistics",
      "source_type": "govt_report",
      "statistic": "Police recorded vehicle offences fell 8% to 350,070 in the year ending March 2025",
      "excerpt": "Police recorded vehicle offences decreased by 8% (to 350,070 offences) during the same period.",
      "source_date": "2025-07-24",
      "source_accessed": "2026-06-13",
      "calculation_notes": "Establishes the scale and direction of UK vehicle crime from the authoritative national statistician. 'Vehicle offences' is broader than theft of a vehicle (it includes theft from vehicles and interference), so this figure is used to anchor order of magnitude, not as the theft numerator directly. The theft-of-vehicle subtotal (~120,000-136,000/yr) is taken from RUSI and secondary ONS summaries.",
      "independence_note": "ONS police-recorded crime is independent of the insurer (Tracker, ABI) and think-tank (RUSI) sources used elsewhere in this entry."
    },
    {
      "url": "https://www.rusi.org/explore-our-research/projects/combatting-vehicle-theft-uk-strategies-against-organised-crime",
      "title": "Combatting Vehicle Theft in the UK: Strategies Against Organised Crime",
      "publisher": "Royal United Services Institute (RUSI)",
      "source_type": "reputable_reference",
      "statistic": "Over 80% increase in vehicles stolen in England and Wales from 2013 to 2023; RUSI identifies relay attacks and CAN-injection as primary methods",
      "excerpt": "an increase of over 80% in the number of vehicles stolen in England and Wales from 2013 to 2023",
      "source_date": "2025-06-01",
      "source_accessed": "2026-06-13",
      "calculation_notes": "RUSI's June 2025 work documents the reversal of two decades of declining UK vehicle theft and identifies relay/signal-amplification and CAN-injection as the lead methods. The RUSI report itself frames keyless attacks as a primary method; the skeptical reading (that the evidence for the extent of keyless taking is weak) comes from an independent commentary, not from RUSI. The total-thefts figure of 136,396 for 2022-23 and the rate of 4.42 per 1,000 cars are cited in secondary summaries of the RUSI paper and were not confirmed on a RUSI-hosted page, so they are treated as approximate in the normalization."
    },
    {
      "url": "https://www.police-life.co.uk/story/2025/11/29/legislation-must-be-enforced-as",
      "title": "Legislation Must Be Enforced As Keyless Thefts Soar — Tracker Reaches 15-Year High in Stolen Vehicle Recovery",
      "publisher": "Police Life (reporting Tracker UK data)",
      "source_type": "news_article",
      "statistic": "93% of vehicles recovered by Tracker were taken without the keys; over £35m of vehicles recovered Jan-Oct 2025, a 15-year high",
      "excerpt": "93% of the vehicles recovered by Tracker, the stolen vehicle recovery (SVR) expert, were taken without the keys",
      "source_date": "2025-11-29",
      "source_accessed": "2026-06-13",
      "calculation_notes": "Tracker's recovery data confirm that keyless/electronic methods dominate UK whole-vehicle theft. 'Without the keys' is broader than relay specifically (it also captures CAN-injection and cloning), so it supports the electronic-theft category that frames this entry rather than isolating the relay share. Tracker recoveries are a biased sample (only tracked, mostly higher-value vehicles), so the 93% is an upper-bound indicator of the keyless share, not the population rate.",
      "independence_note": "Tracker is a commercial recovery firm; figure is corroborated directionally by the ONS CSEW method-share and is independent of the ONS and RUSI sources."
    },
    {
      "url": "https://nation.cymru/news/car-key-hacking-cases-quadruple-in-wales-and-england/",
      "title": "Car key hacking cases quadruple in Wales and England",
      "publisher": "Nation.Cymru (analysis of ONS data by RTA Law)",
      "source_type": "news_article",
      "statistic": "Share of car thefts via key-fob signal manipulation rose from 13% (Apr 2018-Mar 2019) to 58% (Apr 2023-Mar 2024) per ONS CSEW",
      "excerpt": "from Apr 2018 to Mar 2019, only 13% of thefts were committed this way – but this skyrocketed to 58% from Apr 2023 to Mar 2024",
      "source_date": "2025-01-20",
      "source_accessed": "2026-06-13",
      "calculation_notes": "Provides the electronic-theft method-share used in the numerator. The 58% (2023-24) figure is consistent with the 57.6% whole-vehicle figure that fell to 46.7% in 2024-25 in later CSEW tables; ~50% is used centrally. The underlying data are ONS Crime Survey (victim-reported), which is why method attribution carries error and the uncertainty band is wide.",
      "independence_note": "Reports a third-party (RTA Law) analysis of the underlying ONS CSEW dataset; the trend is the ONS survey's, not the news outlet's."
    },
    {
      "url": "https://www.autoexpress.co.uk/car-news/105809/almost-all-keyless-car-systems-vulnerable-to-relay-attacks",
      "title": "Almost all keyless car systems vulnerable to relay attacks",
      "publisher": "Auto Express (reporting ADAC / Which? testing)",
      "source_type": "news_article",
      "statistic": "Of 237 keyless car models ADAC tested, 230 were vulnerable to relay attacks; only 3 (all Jaguar Land Rover) fully resisted",
      "excerpt": "230 were vulnerable to relay attacks ... Only 3 models achieved full resistance to keyless attacks (all Jaguar Land Rover vehicles)",
      "source_date": "2024-01-01",
      "source_accessed": "2026-06-13",
      "calculation_notes": "Supports the EU/Europe regional row: relay vulnerability is near-universal across the keyless fleet, independent of brand tier. ADAC's own time-series shows slow improvement (e.g. 44 of 616 models protected by August 2023), but the protected share has stayed in the single-digit percentages. This is a vulnerability count, not a theft rate, and is used qualitatively in the regional breakdown, not in the numerator. The 2024 date is approximate to the Auto Express report; ADAC updates the test continuously.",
      "independence_note": "ADAC (German motoring club) testing, reported via Auto Express and corroborated by Which?; independent of the UK crime statistics."
    }
  ],
  "comparison_anchors": [
    {
      "label": "Vehicle theft (any method, lifetime, US adult)",
      "lifetime_us_adult": 0.0296
    },
    {
      "label": "Stroke (lifetime, US adult)",
      "lifetime_us_adult": 0.067
    },
    {
      "label": "Home burglary (lifetime, US)",
      "lifetime_us_adult": 0.39
    }
  ],
  "regional_breakdown": [
    {
      "region": "United Kingdom",
      "probability": 0.075,
      "notes": "The heartland. ONS CSEW attributes roughly half of whole-vehicle thefts to key-fob signal manipulation (57.6% in 2023-24), up from 13% in 2018-19, against a fleet where the Home Office says over 27% of vehicles have vulnerable keyless entry. The ~1-in-13 central estimate is the UK keyless-owner figure."
    },
    {
      "region": "European Union / continental Europe",
      "probability": 0.06,
      "notes": "Broadly comparable exposure. ADAC testing found the overwhelming majority of keyless models sold in Europe defeatable by relay amplification (230 of 237 models in one widely-cited test). Underlying national theft rates vary, so the figure is approximate and somewhat below the UK; no single EU-wide per-keyless-vehicle relay rate is published."
    },
    {
      "region": "United States",
      "probability": 0.008,
      "notes": "Far lower and poorly tracked. NICB and FBI UCR do not break vehicle theft out by relay method; the 2022-2024 US theft spike was driven by the Kia/Hyundai immobilizer exploit (a physical-key vector), not relay attacks. Relay theft occurs but is a small, unmeasured share, so this is an order-of-magnitude placeholder, not a measured rate."
    }
  ],
  "short_label": "Keyless relay car theft",
  "outcome_severity": "moderate_harm",
  "exposure_pattern": "recurring",
  "outcome_type": "property",
  "valence": "negative",
  "caveats": "covered_in_prose",
  "quality_score": {
    "d1": 4,
    "d2": 4,
    "d3": 4,
    "d4": 4,
    "d5": 4,
    "d6": 5,
    "d7": 4,
    "d8": 5,
    "avg": 4.25,
    "scored_by": "claude-code-8d",
    "scored_at": "2026-06-13",
    "methodology_version": "8d-v1"
  },
  "reviewer": "8d-eval-2026-06-13",
  "last_reviewed": "2026-06-13",
  "reviewed": true,
  "generated_at": "2026-06-13",
  "image": {
    "alt": "An abstract editorial symbol evoking \"Keyless relay car theft\", muted two-tone palette, flat vector."
  },
  "attribution": "Likelier — https://likelier.app",
  "license": "https://creativecommons.org/licenses/by-sa/4.0/",
  "support": "https://buymeacoffee.com/kgluszczyk?via=likelier&utm_content=api-fear-single",
  "canonical_url": "https://likelier.app/keyless-relay-car-theft"
}