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EC
NYSE Energy & Transportation

Ecopetrol Reports Cybersecurity Breach Exposing 3,300 Accounts Across 15 Subsidiaries

Arie Shkolnikov · Analysis by Wiseek AI
More coverage: Oil & Gas Stocks · Energy
Sentiment info
Negative
Importance info
8
Price
$16.08
Mkt Cap
$33.243B
52W Low
$8.265
52W High
$17.75
52W Position info
95% above low
Off High info
9.4% below high
Rel. Volume info
0.6× avg
Market data snapshot near publication time

EC sits 95% above its 52-week low of $8.265.

Summary

Ecopetrol disclosed a cybersecurity incident involving unauthorized access to cloud storage across 15 subsidiaries, affecting approximately 3,300 user accounts. An external actor is demanding extortion and threatening to leak the stolen data; the company has not yet identified material operational disruption but warns of potential material adverse effects.


Key Events · Legal and Risk Events · EC

  • Cybersecurity Breach

    Unauthorized access to cloud-based file storage environments of approximately 15 subsidiaries, resulting in the unauthorized download of data associated with approximately 3,300 user accounts.

  • Extortion Demand

    The external actor communicated extortion demands, threatening to publicly disclose the unlawfully extracted information.

  • Ransomware Attempt Blocked

    An attempted ransomware attack was blocked by the company's cybersecurity controls.

  • Operational Impact Limited So Far

    As of the report date, no material disruption to critical operations, production capacity, or essential services has been identified.


Analysis · EC · Energy & Transportation

A cyberattack breached cloud storage across 15 Ecopetrol subsidiaries, exposing data from roughly 3,300 user accounts. The attacker is demanding extortion and threatening to leak the stolen information. While core operations are currently unaffected, the company cannot rule out a material financial or reputational hit — a serious risk for Colombia's largest energy firm, already navigating a credit downgrade, a CEO under criminal charge, and a suspended Brazilian acquisition.

How filings like this one have moved

In the 30 days to Sep 14, 2026, 35.8% of the 1045 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.43%. These are measured outcomes after filings of this importance, not a forecast for this one.

Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset

At the time of this filing, EC was trading at $16.08 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $33.2B. The 52-week trading range was $8.27 to $17.75. This filing was assessed with negative market sentiment and an importance score of 8 out of 10.

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EC - Latest Insights

EC
Aug 27, 2026, 6:34 PM EDT
Filing Type: 6-K
Importance Score:
7
Price at Filing: $16.61
Real-time Price: $17.63 info
Change: +$1.02 (+6%) info
Market Cap: $36.369B info
EC
Aug 18, 2026, 12:20 AM EDT
Source: PR Newswire
Importance Score:
8
Price at Filing: $17.71
Real-time Price: $17.63 info
Change: -$0.080 (-0.45%) info
Market Cap: $36.369B info
EC
Aug 05, 2026, 7:03 PM EDT
Source: PR Newswire
Importance Score:
8
Price at Filing: $16.39
Real-time Price: $17.63 info
Change: +$1.24 (+8%) info
Market Cap: $36.369B info
EC
Aug 03, 2026, 6:28 PM EDT
Filing Type: 6-K
Importance Score:
8
Price at Filing: $16.52
Real-time Price: $17.63 info
Change: +$1.11 (+7%) info
Market Cap: $36.369B info
EC
Jul 28, 2026, 6:03 AM EDT
Filing Type: 6-K
Importance Score:
8
Price at Filing: $15.64
Real-time Price: $17.63 info
Change: +$1.99 (+13%) info
Market Cap: $36.369B info