証拠の質 4.38/5
8次元のレビュー評価。基準は 品質ルーブリック 。各次元は1〜5で評価。
- D1 出典への根拠
- 4/5
- D2 出典の権威性
- 5/5
- D3 算術
- 4/5
- D4 不確実性
- 4/5
- D5 範囲
- 5/5
- D6 文章
- 5/5
- D7 認識の誠実性
- 3/5
- D8 注意事項の完全性
- 5/5
≈ 同じくらいの確率
認知リスク
初めてのアパートを探す若年成人は賃貸物件詐欺にある程度の頻度で遭遇するが、このリスクがどれほど一般的かを数量的に把握している人は少ない。偽の物件掲載、敷金や初月の家賃の緊急の要求、姿を消す「大家」という詐欺のパターンは広く知られているものの、実際に遭遇するまで自分事として意識されないことが多い。物件探しがほぼ完全にオンラインプラットフォームへ移行したことで、詐欺は大規模に実行しやすくなった。実在の物件から流用された本物らしく見える写真、偽の連絡先、切迫感を煽る手口が組み合わさり、住まいの確保という現実の時間的プレッシャー下にある借り手を追い込む。
出典: 編集部の直感(調査に基づかない)
実際のリスク
オンラインで賃貸物件を探した米国の賃借人の約100分の5が偽物件詐欺で金銭を失った(生涯)
オンラインで賃借した、またはオンラインで賃貸物件を探した米国成人(Apartment List 2018年)
計算を表示
Apartment Listによる2018年の全国代表性のある1,000人超の米国賃借人調査(全国回答者1,126人):推定5.2百万人の米国賃借人が賃貸詐欺で金銭を失ったと報告している。賃借人のうち43.1%が詐欺の疑いのある物件掲載に遭遇し、6.4%が金銭を失った(自己申告のノイズを考慮し、ここでは下限の≈5%を使用)。正規化された数字(0.05 = 5%)は、オンラインで賃借している、または賃借したことのある米国成人における生涯損失率である。広い不確実性は、自己申告という手法、定義のばらつき(「金銭を失った」対「疑わしい掲載に遭遇した」)、および詐欺手口の急速な進化を反映している。 下限(0.02):「$500以上を失った」というより狭い閾値、または事前に認識のある賃借人。 上限(0.10):切迫感が詐欺の効果を高める、物件が逼迫した高希少性の賃貸市場(出典の都市圏別損失率は最大約10-11%まで広く分布していた)。
注意事項: 5%という数字は2018年のApartment Listによる単一の調査に由来し、自己申告に依存している。「金銭を失った」は回答者の自己定義であり、多額の敷金の…
5%という数字は2018年のApartment Listによる単一の調査に由来し、自己申告に依存している。「金銭を失った」は回答者の自己定義であり、多額の敷金の損失とならんで少額の申込手数料の損失も含まれうる。物件探しが完全にオンラインへ移行するにつれ詐欺の情勢は進化し続けており、率は2018年のベースラインを上回っている可能性があるが、生涯損失率を再測定した2018年以降の人口レベルの調査は存在しない。43.1%という「疑わしい掲載に遭遇した」率は5%の「金銭を失った」率を大きく上回っており、ほとんどの賃借人が詐欺を見分けて回避できていることを示唆する。リスクにさらされているのは、逼迫した市場で急を要する住宅圧力下にある層(初めての転居、立ち退きの圧力、州外からの転居)であり、そこでは「デューデリジェンス」のコストが高くつく。同等のオンライン賃貸詐欺の生涯調査が他国には存在しないため、これは[US-ONLY]と宣言されているが、現象自体は米国特有のものではない。
関連するリスク
似たテーマの他のリスク — 関連する不安を探るために。
比較対象を選択
Apartment List’s 2018 nationally representative survey of over 1,000 US renters found that 43.1% encountered a listing they suspected was fraudulent, and an estimated 5.2 million US renters — 6.4% of renters, roughly 1 in 20 — reported losing money to a rental scam. The typical pattern involves a fake listing (often with photos scraped from legitimate listings), a landlord who is conveniently unavailable to show the unit in person, and pressure to pay a deposit or first month’s rent before viewing. The scam is particularly effective because the victim is typically under real time pressure: apartment searches have deadlines, and the target demographic — first-time movers, students, young professionals — has fewer reference points for what the process should look like.
The FBI IC3 reported $145 million in losses from real estate and rental fraud in 2023, though most victims do not file federal complaints. FTC Consumer Sentinel data shows that people aged 18–29 were three times more likely than other adults to report losing money to a rental scam — 46% of monetary-loss reports came from that group — consistent with the higher frequency of apartment searching in early adulthood. The gap between the 43.1% “encountered a suspicious listing” rate and the 5% “lost money” rate is meaningful: most renters successfully identify scam listings. The at-risk group appears to be renters under acute pressure — those relocating to a new city without local knowledge, searching during peak-season scarcity, or navigating an online-only rental process without trusted local contacts who can verify a listing’s legitimacy.
The 5% loss-rate baseline comes from a single 2018 survey, and no comparable population-level study has re-measured it since. Because apartment searching has moved almost entirely online — where a fake listing can reuse photos scraped from real ones and reach many renters at low cost — the underlying baseline may understate current risk for first-time renters who lack the pattern-recognition experience to spot inconsistencies. That is a plausibility argument, not a measured figure: absent a newer survey, the 2018 rate remains the best available estimate for the lifetime loss rate among online renters.
関連する豆知識
オンラインで賃貸物件を探す米国の成人の約20人に1人が、これまでに偽物件詐欺で金銭を失ったと報告している。怪しい物件に気づいて手を引く人ははるかに多い。損失を被るのは、住居を急いで確保する圧力にさらされ、物件の確認に手間のかかる人が多い。
根拠台帳
以下の各数値は各出典が報告した内容であり、引用した原文の抜粋と算出方法を記載しています。リンクをクリックして直接確認できます。
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[1] Apartment List — Million Dollar Scam: Rental Fraud Costs 5.2 Million U.S. Renters
Million Dollar Scam: Rental Fraud Costs 5.2 Million U.S. Renters- 統計値
43.1% of renters encountered a listing they suspected was fraudulent; 6.4% of US renters (an estimated 5.2 million) lost money on a rental scam; 9.1% of renters aged 18–29 lost money- 抜粋
“"An estimated 43.1 percent of renters have encountered a listing they suspected was fraudulent, and 5.2 million U.S. renters have lost money from rental fraud. [...] 6.4 percent of U.S. renters lost money on a rental scam. [...] younger renters are more likely to experience rental fraud, with 9.1 percent of 18 to 29-year-old renters having lost money on a rental scam, compared to 6.4 percent of all renters." Based on "a nationally representative survey of over 1,000 U.S. renters." ”
- 出典データ
- 2018-04-25
- アクセス日
- 2026-07-01 · アーカイブ版
- 計算過程
- Apartment List rental-fraud report (nationally representative survey of over 1,000 US renters). The 5.2M lifetime-loss figure equals the report's 6.4% money-loss rate among US renters. The 43.1% "encountered a suspicious listing" figure is not the same as "lost money" — the gap between these two rates reflects that most people recognize and avoid scams. The reported 6.4% money-loss rate is the basis for the native/normalized rate (rounded to ~5% at the low end of the reported range in this entry, given self-report noise); 18–29 renters lost money at 9.1%, nearly 1.5× the all-renter rate.
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[2] Federal Trade Commission — Data Spotlight: Rental scams hit home with $65 million in reported losses
Data Spotlight: Rental scams hit home with $65 million in reported losses- 統計値
Since 2020, nearly 65,000 rental scams reported to the FTC with about $65 million in losses; median reported loss $1,000; people aged 18–29 were three times more likely than other adults to report losing money to a rental scam- 抜粋
“"Since 2020, people have reported nearly 65,000 rental scams to the FTC with about $65 million in losses. [...] People ages 18 to 29 were three times more likely than other adults to report losing money to a rental scam. [...] The median reported loss amount during this period was $1,000." ”
- 出典データ
- 2025-12-22
- アクセス日
- 2026-06-30 · アーカイブ版
- 計算過程
- FTC Consumer Sentinel Network Data Spotlight, December 22, 2025. Aggregates rental-scam reports 2020–2025: ~65,000 reports, ~$65M reported losses, $1,000 median loss. Reports are a reported-only numerator with no population denominator, so this does not independently supply the 5% lifetime rate; the Apartment List survey remains the primary source for the native estimate. Used as corroboration that rental fraud is a documented, non-trivial category that disproportionately affects young adults — those aged 18–29 were three times more likely than other adults to report losing money to a rental scam, and 46% of monetary-loss reports came from the 18–29 group.
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[3] Federal Bureau of Investigation Internet Crime Complaint Center (FBI IC3) — Internet Crime Report 2023
Internet Crime Report 2023- 統計値
In 2023 the FBI IC3 received 9,521 Real Estate complaints with about $145 million in losses; the IC3 'Real Estate' category is defined as 'Loss of funds from a real estate investment or fraud involving rental or timeshare property'- 抜粋
“"Real Estate: Loss of funds from a real estate investment or fraud involving rental or timeshare property." In 2023 the IC3 recorded 9,521 Real Estate complaints and approximately $145 million in reported losses under this crime-type category. ”
- 出典データ
- 2024-03-01
- アクセス日
- 2026-07-01 · アーカイブ版
- 計算過程
- FBI IC3 2023 Internet Crime Report, "Real Estate" crime type (9,521 complaints, ~$145M reported losses). The IC3 "Real Estate" category covers real-estate investment loss plus rental and timeshare fraud, so it is broader than online fake-listing rental scams alone. The $145M loss figure is a reported-only numerator; most rental scam victims do not file IC3 complaints, so it supplies no population denominator. Used only as independent confirmation that rental-related fraud is a substantial, documented category.







