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Polymarket halts international trading after third-party vendor compromise

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Coverage spectrum

Covered by 3 outlets across the spectrum.

3 articles in total. The spectrum counts each outlet once and leaves opinion out. How we measure bias

Smartphone screen showing the Polymarket logo on a blue background in dim lighting
Image via NBC NewsHow images are chosenReport this image

Polymarket halted trading on its international platform on Thursday after a third-party provider was compromised, the company said. CNBC, NBC News and the Washington Examiner report the halt, and the company said its U.S. exchange kept operating. NBC News, citing The Block, reports that about $2.65 million was siphoned from the platform, and the Washington Examiner reports more than $2.5 million across more than 900 transactions. Polymarket did not confirm that users lost money but said affected traders would be made whole. The Washington Examiner, citing The Wall Street Journal, names the vendor as Debugbear, which said its monitoring software was hit by a security incident.

Headline and summary written by Mantle’s AI from the coverage below, under published rules. How this works

What happened

Key points

Each point shows who reports it, from Far Left to Far Right.

  1. Polymarket halted trading on its international platform on Thursday, citing a compromise at a third-party provider.

    Reported byLeft1Center1Right1See the outletsHide the outlets
    Left
    NBC News
    Center
    CNBC
    Right
    Washington Examiner

  2. Trading on the international platform resumed at 3 p.m. ET, the company said.

    Reported byLeft1Center1See the outletsHide the outlets
    Left
    NBC News
    Center
    CNBC

  3. Polymarket’s U.S. exchange kept operating during the halt.

    One outletCNBC· Center

  4. About $2.65 million in cryptocurrency was reportedly siphoned from the platform, according to The Block citing blockchain analysis firm Arkham.

    Reported byLeft1Right1See the outletsHide the outlets
    Left
    NBC News
    Right
    Washington Examiner

  5. Polymarket said affected traders would be made whole; it did not confirm that users had lost money.

    Reported byLeft1Center1Right1See the outletsHide the outlets
    Left
    NBC News
    Center
    CNBC
    Right
    Washington Examiner

  6. The vendor was reportedly Debugbear, which said its monitoring software was affected by a security incident.

    One outletWashington Examiner· Right

What is contested

Where accounts differ

Points the coverage does not agree on, and who says what.

  • About $2.65 million was taken from users.

    NBC News, citing The Block and Arkham data, and the Washington Examiner, citing multiple reports, put the sum at about $2.65 million or more than $2.5 million; Polymarket did not confirm that users lost money.

  • The incident was a hack.

    CNBC describes a hack of an unnamed third-party provider; Polymarket and NBC News use the terms compromise, and the Washington Examiner uses security incident, without stating a cause.

How each side tells it

Compare views

All three outlets report a Thursday halt of Polymarket’s international trading after a third-party compromise. The center stresses the outage before midterm trading, the left the reimbursement pledge, and the right the $2.65 million reportedly taken.

  • the left

    1 outlet

    Leads with the third-party compromise and the pledge to make affected users whole, putting the reimbursement promise in the headline.

    Polymarket trading halted after vendor compromise; impacted users will be ‘made whole’
    NBC NewsLeftAll left-leaning headlines

  • the center

    1 outlet

    Frames the event as an outage that halted trading on the international exchange, with the upcoming midterm trading volume noted in the description.

    Polymarket reports outage on international exchange, halts trading
    CNBCCenterAll center headlines

  • the right

    1 outlet

    Leads with the dollar loss and the phrase security incident, framing the halt around $2.65 million siphoned within minutes.

    Polymarket halts trading after ‘security incident’ siphons $2.65 million in minutes
    Washington ExaminerRightAll right-leaning headlines

The words they chose

Language to notice

Words that carry a judgement beyond the facts. Tap a highlighted word anywhere on the page to see why.

Mantle found no loaded language in this coverage. Every headline and opening was checked against Mantle’s published word list, and Mantle’s AI read all 3 articles in context. Straight reporting often has none.

See for yourself

Side by side

What each side leads with and what it leaves out. Open a side to read its headlines.

From the left

1 outlet

Leads with

  • vendor compromise
  • reimbursing affected traders
  • unconfirmed reports of drained wallets
See the headline from the leftHide the headlines
  • NBC NewsLeft

    Polymarket trading halted after vendor compromise; impacted users will be ‘made whole’

    Predictions markets platform Polymarket was forced to halt trading on its international platform Thursday for nearly an hour because of what it said was a third-party compromise.

    Read at NBC News (opens in a new tab)

From the center

1 outlet

Leads with

  • outage and trading halt
  • heightened midterm trading ahead
  • fix and resumption of trading

Leaves out

  • the $2.65 million loss reported by other outlets

Reported by other sides, not found in this side’s coverage.

See the headline from the centerHide the headlines
  • CNBCCenter

    Polymarket reports outage on international exchange, halts trading

    The outage comes just days before the platform is expected to experience heightened trading during the U.S. midterm elections.

    Read at CNBC (opens in a new tab)

From the right

1 outlet

Leads with

  • $2.65 million siphoned
  • losses within minutes
  • more than 900 transactions
See the headline from the rightHide the headlines

The stories you read build My Mix, a private picture of which sides cover the stories you choose, kept on this device. What is My Mix?

The left is Far Left and Left together. The right is Right and Far Right together. Every outlet keeps its own five-point rating.

Who reported it when

How the coverage built up

  • Left

    12 min later

    Its first report, Oct 29, 3:09 PM EDT

  • Center

    First to report

    CNBC, Oct 29, 2:57 PM EDT

  • Right

    2 hr 21 min later

    Its first report, Oct 29, 5:18 PM EDT

See the order the outlets reported inHide the order
  1. CNBCCenterOct 29, 2:57 PM EDT
  2. NBC NewsLeftOct 29, 3:09 PM EDT
  3. Washington ExaminerRightOct 29, 5:18 PM EDT

Times are the ones the outlets published in their own feeds, in Eastern time. Opinion is left out.

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