Incident catalog

Thirty cases. Pick one and see what happened.

Search by company or ticker. Filter by incident type, year, recovery or available data. Every case also includes a 14-day media-attention summary and article register.

30 of 30 cases

One company × one incident. Shared campaigns stay separate.

CRWD Software / service outage
Jul 19, 2024

CrowdStrike

A faulty Falcon content update caused Windows crashes across millions of hosts and disrupted critical services worldwide.

1-month vs SPY -23.5 pp Below SPY
Recovery Recovered
T Privacy breach
Jul 12, 2024

AT&T

AT&T disclosed that threat actors illegally downloaded call and text interaction records covering nearly all wireless customers for specified periods.

1-month vs SPY +7.2 pp Above SPY
Recovery Recovered
UNH Ransomware
Feb 21, 2024

UnitedHealth Group (Change Healthcare)

The Change Healthcare ransomware attack disrupted US claims, pharmacy and payment infrastructure on a national scale.

1-month vs SPY -10.7 pp Below SPY
Recovery Recovered
MSFT Security breach
Jan 19, 2024

Microsoft

Microsoft disclosed that Midnight Blizzard accessed and exfiltrated email from a small percentage of corporate accounts, including senior leadership.

1-month vs SPY -2.0 pp Below SPY
Recovery Recovered
CZR Ransomware
Sep 14, 2023

Caesars Entertainment

Caesars disclosed a social-engineering attack through an outsourced IT support vendor that led to theft of loyalty-program customer data.

1-month vs SPY -16.0 pp Below SPY
Recovery Not recovered within 24 months
MGM Ransomware
Sep 11, 2023

MGM Resorts International

MGM disclosed a cybersecurity issue that forced system shutdowns and disrupted hotel and casino operations across multiple US properties.

1-month vs SPY -11.4 pp Below SPY
Recovery Recovered
CLX Disruptive cyberattack
Aug 14, 2023

The Clorox Company

Clorox disclosed unauthorized activity that forced systems offline and later caused widescale operational, order-processing and product-availability disruption.

1-month vs SPY -7.2 pp Below SPY
Recovery Recovered
PRGS Supply-chain compromise
May 31, 2023

Progress Software

Progress disclosed a zero-day vulnerability in MOVEit Transfer that was exploited across many customer environments in a mass data-theft campaign.

1-month vs SPY -8.8 pp Below SPY
Recovery Recovered
UBER Security breach
Sep 15, 2022

Uber Technologies

Uber disclosed a compromise of internal systems after an attacker used a contractor's credentials and gained access to several employee tools.

1-month vs SPY -17.5 pp Below SPY
Recovery Recovered
TWLO Security breach
Aug 7, 2022

Twilio

Twilio disclosed that a social-engineering campaign stole employee credentials and enabled access to data associated with customer accounts.

1-month vs SPY -16.2 pp Below SPY
Recovery Recovered
OKTA Supply-chain compromise
Mar 22, 2022

Okta

Okta confirmed that an attacker had accessed a third-party support engineer's laptop and could interact with limited customer-support data.

1-month vs SPY -15.4 pp Below SPY
Recovery Not recovered within 24 months
TMUS Privacy breach
Aug 16, 2021

T-Mobile US

T-Mobile confirmed unauthorized access to its data and later identified tens of millions of current, former and prospective customers in stolen files.

1-month vs SPY -11.3 pp Below SPY
Recovery Recovered
FSLY Software / service outage
Jun 8, 2021

Fastly

A latent Fastly software bug triggered by a valid customer configuration caused a broad global outage across its edge network.

1-month vs SPY +6.1 pp Above SPY
Recovery No initial drop
GRMN Ransomware
Jul 23, 2020

Garmin

A ransomware attack encrypted Garmin systems and interrupted online services, customer support, applications and company communications.

1-month vs SPY -2.8 pp Below SPY
Recovery Recovered
CTSH Ransomware
Apr 18, 2020

Cognizant Technology Solutions

Cognizant disclosed a Maze ransomware attack on internal systems that caused service disruption for some clients.

1-month vs SPY -4.2 pp Below SPY
Recovery Recovered
COF Privacy breach
Jul 29, 2019

Capital One Financial

Capital One disclosed unauthorized access affecting about 100 million people in the United States and 6 million in Canada.

1-month vs SPY -7.7 pp Below SPY
Recovery Recovered
MAR Privacy breach
Nov 30, 2018

Marriott International

Marriott disclosed long-running unauthorized access to the legacy Starwood reservation database, affecting hundreds of millions of guest records.

1-month vs SPY -2.9 pp Below SPY
Recovery Recovered
FB Data misuse
Mar 17, 2018

Facebook (now Meta Platforms)

Reporting and Facebook's response exposed large-scale misuse of platform-derived user data by Cambridge Analytica and related parties.

1-month vs SPY -7.4 pp Below SPY
Recovery Recovered
EFX Privacy breach
Sep 7, 2017

Equifax

Equifax disclosed unauthorized access involving sensitive identity information for roughly 143 million US consumers at the initial announcement.

1-month vs SPY -25.5 pp Below SPY
Recovery Recovered
FDX Destructive cyberattack
Jun 27, 2017

FedEx

NotPetya significantly disrupted FedEx subsidiary TNT Express worldwide, affecting communications, operations, revenue and restoration work.

1-month vs SPY -5.2 pp Below SPY
Recovery Recovered
MRK Destructive cyberattack
Jun 27, 2017

Merck & Co.

NotPetya disrupted Merck's worldwide manufacturing, research and sales operations and produced hundreds of millions of dollars in recorded effects.

1-month vs SPY -5.0 pp Below SPY
Recovery Recovered
MDLZ Destructive cyberattack
Jun 27, 2017

Mondelez International

The NotPetya malware incident affected a significant portion of Mondelez's global sales, distribution and financial networks.

1-month vs SPY -2.6 pp Below SPY
Recovery Recovered
ANTM Privacy breach
Feb 4, 2015

Anthem (now Elevance Health)

Anthem disclosed a sophisticated external attack that obtained personal information associated with tens of millions of people.

1-month vs SPY +3.4 pp Above SPY
Recovery Recovered
SNE Destructive cyberattack
Nov 24, 2014

Sony Group

A destructive attack on Sony Pictures disabled systems, exposed sensitive business and employee data, and disrupted studio operations.

1-month vs SPY -0.7 pp Below SPY
Recovery No initial drop
JPM Security breach
Oct 2, 2014

JPMorgan Chase

JPMorgan Chase disclosed that a cyberattack compromised contact information associated with 76 million households and 7 million businesses.

1-month vs SPY -1.0 pp Below SPY
Recovery No initial drop
HD Security breach
Sep 8, 2014

The Home Depot

Home Depot confirmed a breach of payment systems at US and Canadian stores, later reporting exposure involving up to 56 million cards.

1-month vs SPY +4.5 pp Above SPY
Recovery Recovered
EBAY Security breach
May 21, 2014

eBay

eBay disclosed that compromised employee credentials enabled access to a customer database and asked all users to reset passwords.

1-month vs SPY -10.0 pp Below SPY
Recovery Recovered
TGT Security breach
Dec 19, 2013

Target

Target confirmed unauthorized access to payment-card data from US stores during the peak holiday shopping period.

1-month vs SPY -6.8 pp Below SPY
Recovery Recovered
ADBE Security breach
Oct 3, 2013

Adobe

Adobe disclosed unauthorized access to customer information and source code for multiple products, followed by a broad password reset.

1-month vs SPY +1.8 pp Above SPY
Recovery Recovered
TJX Security breach
Jan 17, 2007

The TJX Companies

TJX disclosed an intrusion into systems processing customer transactions after investigators found that payment-card data had been stolen.

1-month vs SPY -6.3 pp Below SPY
Recovery Recovered