Campus Alert Archive
Yale

Overnight hoax call claiming an armed man locked down Old Campus for nearly three hours

AI-generated · every claim is source-linked
CTswattingemergency notificationhigh confidence
Compare →
Confirmed HoaxDetermined to be a hoax. The institutional response is documented because it reveals how the alert system performed under a perceived real threat.

An anonymous caller contacted the Yale Police Department at 12:16 a.m. EST on January 17, 2023 claiming to have seriously harmed a female student and to possess a knife and hunting rifle inside Bingham Hall. The nearly three-hour swatting incident forced a shelter-in-place for all of Old Campus before police determined the call was a hoax.

Alerts
3
Response
—
Killed
—
Injured
—
Institution
Yale University
Private R1 · CT
All Yale cases →
~14,776 studentsYale ALERT
Official alert policy
Read when and how Yale says it will use Yale ALERT: summarized, quoted, and analyzed.
Documented Timeline

Alert Sequence

3 messages in sequence · 2 verified verbatim

Some messages in this sequence are documented (their existence, timing, and channel are sourced) but their exact wording is not preserved in the public record. Those entries appear as placeholders; only confirmed text is displayed.

INITIAL ALERTSMS
Verified verbatimYale Daily News live coverage of January 17, 2023 swatting incident, quoting the Yale Alert text verbatim with full street address217 chars
Police are responding to an incident in the area of Old Campus 344 College St, New Haven, CT 06511, USA. If you are in Old Campus please shelter in place. All others please avoid the area while the police investigate.
Verbatim from the Yale Daily News live breaking news report, which quoted the alert with the automated Rave address format: '344 College St, New Haven, CT 06511, USA'. Yale's Rave system appends the nearest matching address to each zone-based notification.
Sent 40 minutes after the initial call was received at 12:16 a.m. EST on January 17, 2023, reflecting the time needed to establish a perimeter before alerting the broader community.
By this point, Yale Police had dispatched officers and set up a perimeter around Old Campus and were actively searching Bingham Hall.
UPDATESMS+1h 34m
Verified verbatimYale Daily News (quoting the 2:30 a.m. Yale Alert)220 chars
Yale Alert: Police are investigating what they believe to be a false report from an individual threatening harm on Old Campus. Continue to shelter in place as police continue investigating out of an abundance of caution.
Yale Daily News quoted this alert verbatim, noting it announced police were investigating 'what they believe to be a false report from an individual threatening harm on Old Campus' and directed students to continue sheltering in place 'out of an abundance of caution'
Sent at 2:30 a.m. EST on January 17, 2023, while officers were reviewing card swipes and surveillance footage in and around Bingham Hall
This is the message that signaled to the campus that the report was likely a swatting hoax even before the all-clear was issued
ALL CLEARSMS+2h 11m
Wording not preserved
A all clear message is documented at this point in the sequence, but its exact wording is not preserved in the public record. The public edition displays only confirmed alert text.
Message elements

How the first alert is built

To check this alert, Claude (an AI) read it in full 25 separate times, independently. Each read decided whether the message answers each of the six questions and gave a short reason. A final reviewer then weighed all 25 and wrote the plain-English verdict you see when you open a row. The score (for example 22/25) is how many reads agreed; the 25 individual reads are tucked underneath if you want to check them.

Police are responding to an incident in the area of Old Campus 344 College St, New Haven, CT 06511, USA. If you are in Old Campus please shelter in place. All others please avoid the area while the police investigate.

  • Sourcepresent25/25

    Final assessment

    All 25 reads agree the source is present, naming Police as responding.

    Who is sending the alert and who is responding. People act faster on a message from a clearly identifiable, credible sender, such as a named department, the police, or a branded alert system, than on an anonymous notice. A branded signature counts.

    See all 25 individual reads
    1. present: It names "Police" as responding.
    2. present: It names "Police are responding" as the responding authority.
    3. present: It names "Police" who are responding.
    4. present: It names "Police" responding to the incident.
    5. present: It names "Police" as responding.
    6. present: It names "Police" responding and investigating, identifying the responding authority.
    7. present: It names "Police are responding", the responding authority.
    8. present: It names "Police" as responding to the incident.
    9. present: "Police" are named as responding.
    10. present: It names "Police" as "responding" to the incident.
    11. present: It names "Police" as responding to the incident.
    12. present: It names "Police" as responding.
    13. present: It names "Police" responding to the incident.
    14. present: It names "Police are responding", a responding authority.
    15. present: It names "Police" responding to the incident.
    16. present: It names "Police" and "the police" as responding and investigating.
    17. present: It names "Police", the responding authority.
    18. present: It names "Police" as the responding authority.
    19. present: It names "Police" as responding and investigating.
    20. present: It names "Police" as responding.
    21. present: It names "Police" as responding to the incident, the authority.
    22. present: Names "Police" responding to the incident.
    23. present: Names "Police" as the responding authority.
    24. present: "Police are responding" names the responding authority.
    25. present: It names "Police" as responding.
  • Hazardabsent0/25

    Final assessment

    All 25 reads find no specific hazard named; it refers only to an incident without naming the threat.

    What the threat actually is. A complete warning names the specific danger, such as a shooter, a fire, a tornado, or a gas leak, rather than a vague emergency, because people decide what to do based on what they are facing.

    See all 25 individual reads
    1. absent: It refers to "an incident" but names no specific threat.
    2. absent: It says "an incident" but names no specific hazard.
    3. absent: It cites "an incident" generically without naming a hazard.
    4. absent: It refers to "an incident" but names no specific hazard.
    5. absent: It refers to "an incident" but names no specific threat.
    6. absent: It cites "an incident" generically and names no specific threat.
    7. absent: It refers only to "an incident" with no specific threat named.
    8. absent: It says "an incident" but names no specific hazard.
    9. absent: It says "an incident" without naming a specific hazard.
    10. absent: It refers to "an incident" with no specific hazard named.
    11. absent: It refers to "an incident" but names no specific hazard.
    12. absent: It says only "an incident", which is generic and does not name the hazard.
    13. absent: It says "an incident" but names no specific threat or hazard.
    14. absent: It says "an incident" but names no specific hazard.
    15. absent: It refers to "an incident" but names no specific threat.
    16. absent: It refers to "an incident" but names no specific threat, which is generic.
    17. absent: It refers to "an incident" only, naming no specific hazard.
    18. absent: It says "an incident" being responded to but names no specific hazard.
    19. absent: It references an "incident" without naming any specific threat.
    20. absent: It refers to "an incident" but names no specific hazard.
    21. absent: It refers to "an incident" but names no specific hazard.
    22. absent: Says only "an incident"; no specific threat is named.
    23. absent: Refers to "an incident", which is generic and names no specific hazard.
    24. absent: It refers to "an incident" but names no specific hazard.
    25. absent: It cites "an incident" only, naming no specific hazard.
  • Locationpresent25/25

    Final assessment

    Unanimous that a location is given, the area of Old Campus at 344 College St, New Haven, CT.

    Where the threat is. Saying whether danger is in a specific building, a part of campus, or area-wide lets people judge their own proximity and choose a safe direction. Without a where, a warning is hard to act on precisely.

    See all 25 individual reads
    1. present: It locates it "in the area of Old Campus 344 College St, New Haven, CT".
    2. present: It locates it "in the area of Old Campus 344 College St".
    3. present: It locates it "in the area of Old Campus 344 College St, New Haven".
    4. present: It says "the area of Old Campus 344 College St, New Haven, CT".
    5. present: It locates it "in the area of Old Campus 344 College St, New Haven, CT".
    6. present: It specifies "Old Campus 344 College St, New Haven", a location.
    7. present: It locates it "in the area of Old Campus 344 College St, New Haven", a specific place.
    8. present: It names "Old Campus 344 College St, New Haven, CT".
    9. present: It locates it "in the area of Old Campus 344 College St, New Haven".
    10. present: It locates it "in the area of Old Campus 344 College St, New Haven".
    11. present: It specifies "Old Campus 344 College St, New Haven, CT".
    12. present: It names "Old Campus 344 College St, New Haven, CT".
    13. present: It names "Old Campus 344 College St, New Haven, CT".
    14. present: It names "Old Campus 344 College St, New Haven", a specific place.
    15. present: It locates it "in the area of Old Campus 344 College St, New Haven, CT".
    16. present: It names "Old Campus 344 College St, New Haven, CT", a specific address.
    17. present: It names "Old Campus 344 College St, New Haven", a specific place.
    18. present: It locates it "in the area of Old Campus 344 College St, New Haven".
    19. present: It locates it "in the area of Old Campus 344 College St, New Haven, CT".
    20. present: It locates it "in the area of Old Campus 344 College St, New Haven, CT".
    21. present: It gives "Old Campus 344 College St, New Haven, CT", a specific address.
    22. present: Gives "the area of Old Campus 344 College St, New Haven, CT".
    23. present: Locates it "in the area of Old Campus 344 College St, New Haven".
    24. present: It names "Old Campus 344 College St, New Haven, CT", a specific place.
    25. present: It locates it "in the area of Old Campus 344 College St, New Haven".
  • Guidancepresent25/25

    Final assessment

    Unanimous that protective action is given, instructing those in Old Campus to shelter in place and others to avoid the area.

    The protective action to take. A clear, specific instruction, such as shelter in place, evacuate, avoid the area, or run-hide-fight, drives faster and more correct protective behavior than describing the threat alone.

    See all 25 individual reads
    1. present: It instructs those in Old Campus to "shelter in place" and others to "avoid the area".
    2. present: It instructs to "shelter in place" or "avoid the area".
    3. present: It instructs "shelter in place" or "avoid the area".
    4. present: It instructs "shelter in place" or "avoid the area".
    5. present: It instructs "shelter in place" if in Old Campus and others to "avoid the area".
    6. present: It instructs those in Old Campus to "shelter in place" and others to "avoid the area", protective actions.
    7. present: It instructs "shelter in place" and others to "avoid the area", protective actions.
    8. present: It instructs "please shelter in place" and others to "avoid the area".
    9. present: It instructs recipients to "shelter in place" or "avoid the area".
    10. present: It instructs "shelter in place" and "avoid the area".
    11. present: It tells those in Old Campus to "shelter in place" and others to "avoid the area".
    12. present: It instructs recipients to "shelter in place" or "avoid the area".
    13. present: It instructs recipients to "shelter in place" or "avoid the area".
    14. present: It instructs "shelter in place" and "avoid the area", protective actions.
    15. present: It instructs those in Old Campus to "shelter in place" and others to "avoid the area".
    16. present: It instructs to "shelter in place" or "avoid the area", protective actions.
    17. present: It instructs "shelter in place" or "avoid the area", protective action.
    18. present: It instructs "shelter in place" or "avoid the area".
    19. present: It instructs people in Old Campus to "shelter in place" and others to "avoid the area".
    20. present: It instructs "shelter in place" and others to "avoid the area".
    21. present: It instructs "shelter in place" or "avoid the area", protective actions.
    22. present: Instructs "shelter in place" or "avoid the area".
    23. present: Instructs to "shelter in place" or "avoid the area".
    24. present: It instructs to "shelter in place" or "avoid the area", protective actions.
    25. present: It instructs to "shelter in place" or "avoid the area".
  • Timeabsent0/25

    Final assessment

    Unanimous that no clock time, date, or recency cue appears in the text.

    When the message applies. A timestamp, the word now or immediately, or a phrase like until further notice tells the reader whether the danger is current and how quickly to act.

    See all 25 individual reads
    1. absent: No clock time, date, or recency cue appears.
    2. absent: No clock time, date, or recency cue appears.
    3. absent: No clock time, date, or recency cue appears in the text.
    4. absent: No clock time, date, or recency cue appears.
    5. absent: No clock time, date, or recency cue appears in the text.
    6. absent: No clock time, date, or recency cue appears in the text.
    7. absent: No clock time, date, or recency cue appears.
    8. absent: No clock time, date, or recency cue appears in the text.
    9. absent: No clock time, date, or recency cue appears.
    10. absent: No clock time, date, or recency cue appears in the text.
    11. absent: No clock time, date, or recency cue appears.
    12. absent: No clock time, date, or recency cue appears.
    13. absent: No clock time, date, or recency cue appears in the text.
    14. absent: No clock time, date, or recency cue appears.
    15. absent: No clock time, date, or recency cue appears in the text.
    16. absent: No clock time, date, or recency cue appears in the text.
    17. absent: No clock time, date, or recency cue appears.
    18. absent: No clock time, date, or recency cue appears.
    19. absent: No clock time, date, or recency cue appears.
    20. absent: No clock time, date, or recency cue appears.
    21. absent: No clock time, date, or recency cue appears in the message.
    22. absent: No clock time, date, or recency cue appears.
    23. absent: No clock time, date, or recency cue appears in the text.
    24. absent: No clock time, date, or recency cue appears in the text.
    25. absent: No clock time, date, or recency cue appears.
  • Impactabsent1/25

    Final assessment

    No; near-unanimous that the swatting alert states no specific harm, danger, or severity, one dissent.

    What the hazard could do to the people in its path. Beyond naming the threat, a complete warning conveys its potential consequences or severity, such as that a tornado can level buildings or that a leak could be explosive, so recipients grasp how much danger they are in. Research on warning message content finds that a concrete impact statement helps people personalize their risk and act sooner.

    See all 25 individual reads
    1. absent: Reports police responding to an incident and directs shelter in place or avoiding the area but states no explicit harm or danger.
    2. absent: It reports police responding to an incident and directs shelter in place or to avoid the area but states no specific harm or danger.
    3. absent: Police responding with shelter in place and avoid guidance states no explicit harm or what the threat is.
    4. absent: It reports police responding to an incident and instructs shelter in place or to avoid the area but gives no description of the harm or danger.
    5. absent: It reports police responding to an incident and orders shelter in place but states no harm, threat, or danger severity.
    6. absent: It reports police responding to an incident with shelter in place and avoid the area directives but states no explicit harm or danger.
    7. absent: Reports police responding to an incident with shelter in place but states no specific harm, danger, or severity.
    8. absent: It states police are responding to an incident and orders shelter in place but provides no specific harm or danger detail.
    9. absent: Reports police responding to an incident with shelter and avoid the area guidance but states no explicit harm or danger.
    10. absent: It reports police responding to an incident and directs shelter in place but states no harm or specific danger.
    11. absent: Police responding to an incident with shelter-in-place and avoid the area states no specific danger or potential harm.
    12. absent: Reports police responding to an incident and to shelter in place or avoid the area but states no specific harm or danger.
    13. absent: Reports police responding to an incident and directs shelter in place but states no harm, danger, or specific threat.
    14. present: Directs shelter in place and to avoid the area for an active police incident, with the protective directive conveying danger to people.
    15. absent: Reports police responding to an incident with shelter in place but states no explicit harm or danger.
    16. absent: It reports police responding to an incident with shelter-in-place guidance but states no explicit harm, danger, or severity.
    17. absent: It states police are responding to an incident and directs shelter in place or avoidance with no stated harm or severity.
    18. absent: Police responding with shelter in place or avoid the area names the response and gives guidance but states no harm or stated danger.
    19. absent: Reports police responding to an incident and directs shelter or avoidance but states no explicit harm, danger, or severity.
    20. absent: It reports police responding to an incident and directs sheltering but names no specific hazard, harm, or danger.
    21. absent: Reports police responding to an incident with shelter in place directions but states no harm, danger, or cause.
    22. absent: It reports police responding to an incident and orders shelter in place or avoidance but states no specific harm or danger.
    23. absent: It reports an incident with shelter in place and to avoid the area but states no specific harm or danger.
    24. absent: This describes police responding and gives shelter guidance but states no specific harm or danger.
    25. absent: Reports police responding to an incident with shelter and avoidance guidance but states no explicit harm or danger.

Systematic AI judgments with visible reasoning, not human-validated codings.

About this analysis
Context

Background

At 12:16 a.m. EST on January 17, 2023, the Yale Police Department received a call from an unknown male claiming he had seriously harmed a female student, that she may be deceased, and that he possessed a knife and hunting rifle. The caller said he was near Bingham Hall on Old Campus and threatened to shoot officers who tried to enter. At 12:34 a.m. EST, the caller told a YPD officer he was in a dorm room in Bingham. Police immediately dispatched to Old Campus and set up a perimeter. At approximately 2:45 a.m. EST, the caller escalated by saying he would begin shooting in eight minutes. However, conflicting information from the caller led police to determine they were dealing with a swatting incident. The caller also used racial slurs and claimed there was a bomb in a bathroom, further indicating the call was not credible. The YPD, New Haven Police Department, and FBI collaborated on the investigation to identify the caller. Swatting incidents at universities have increased significantly nationwide, with callers exploiting emergency alert systems to cause maximum disruption.
Analysis

Key Findings

The 40-minute gap between the initial call at 12:16 a.m. EST on January 17, 2023 and the first Yale Alert at 12:56 a.m. EST reflects the challenge of assessing threat credibility before issuing a campus-wide notification
The caller demonstrated knowledge of Bingham Hall's layout, which initially lent credibility to the threat before inconsistencies emerged
The escalating nature of the calls, including threats to shoot in eight minutes, tested the police response framework even as officers increasingly suspected a hoax
The incident occurred during the first week of the spring semester, when dormitories were at full occupancy
Outcome
Police determined the calls were a false report (swatting) at approximately 3:00 a.m. No students were harmed. The Yale Police Department, New Haven Police Department, and FBI investigated to identify the caller.
Provenance

Sources

  1. Student Paper
    False reports of armed student in Bingham Hall triggers Old Campus lockdown - Yale Daily News
    yaledailynews.com
    archived copy
  2. Student Paper
    More details emerge about Old Campus swatting incident - Yale Daily News
    yaledailynews.com
    archived copy
  3. Official
    False Report Made to Yale Police Department (January 17, 2023) - Yale College Dean's Office
    yalecollege.yale.edu
    archived copy
  4. News
    Anonymous caller threatens safety of Yale students and SWAT's campus building - Fox 61
    fox61.com
    archived copy
Cite this case

Campus Alert Archive. "Yale University: Overnight hoax call claiming an armed man locked down Old Campus for nearly three hours." Incident of January 17, 2023. Added May 2026; last updated June 2026. https://campusalertarchive.com/case/yale-university-swatting-2023-01-17/

Download case JSON

Alert text quoted on this page remains the work of the issuing institution; the archive is a secondary source.

Tags
swattinghoaxshelter-in-placeold-campusivy-leaguefalse-reportconnecticutHoax
Added May 2026Updated June 2026Via ingestion