Not all historical past is written by people. Some is logged by malware.
In 2024, cybercrime prices have been estimated to cross $9.5 trillion — a quantity so huge that it might make up the third-largest financial system on the earth after the U.S. and China. And that determine’s solely climbing.
From hospitals locked out of their very own programs to whole oil pipelines dropped at a standstill, the most important cyberattacks in historical past didn’t simply disrupt; they uncovered how susceptible trendy infrastructure is. These incidents weren’t one-off glitches. They have been rigorously executed, extremely scalable, and infrequently state-sponsored operations that left a path of stolen information, halted operations, and shattered belief.
The repercussions lengthen past quick monetary losses. Organizations face a median information breach value of $4.88 million, which encompasses misplaced productiveness, authorized charges, and reputational harm. That is very true when information safety software program isn’t outfitted to forestall inner leaks or block attackers as soon as they’re in.
This text explores the most important cyber assaults in latest historical past, together with who was hit, the way it occurred, and the numbers that present simply how excessive the stakes are.
11 greatest cyber assaults in historical past: At a look
| 12 months | Entity affected | Assault abstract | Technique | Estimated influence |
| 2022 | Uber | A hacker gained inner entry through MFA fatigue | Social engineering | Disrupted inner instruments and Slack |
| 2022 | Medibank | Medical and private information of 9.7M stolen | Information breach | Main privateness breach; $35M+ influence |
| 2022 | LastPass | Encrypted vaults and backups exfiltrated | Credential compromise | Belief loss amongst thousands and thousands of customers |
| 2023 | MOVEit | Zero-day in file switch device exploited | Provide chain / zero-day | 2,500+ orgs affected; international fallout |
| 2023 | 23andMe | Genetic profiles accessed through reused logins | Credential stuffing | Lawsuits, racial profiling issues |
| 2023 | T-Cellular | API uncovered the private information of 37M customers | Information breach | Reputational hit, regulatory scrutiny |
| 2023 | Capita (UK) | Ransomware assault hit UK authorities providers | Ransomware | £20M+ cleanup and restoration prices |
| 2023 | Western Digital | Hackers stole inner information, held it for ransom | Extortion | Manufacturing outage, information exfiltration |
| 2024 | Change Healthcare | Ransomware halted U.S. prescription programs | Ransomware (BlackCat) | $22M ransom paid; nationwide disruption |
| 2024 | Microsoft | Russian group breached exec e-mail accounts | Espionage | Ongoing safety overview; reputational danger |
| 2024 | Cencora | Information breach impacted the pharmaceutical provide chain | Information breach | Disclosure ongoing; regulatory motion anticipated |
Greatest cyber assaults in historical past by influence
These incidents triggered authorities inquiries, halted nationwide operations, and redefined how we take into consideration danger, resilience, and accountability within the digital age.
1. Uber (2022): Hacker methods MFA, hijacks inner programs
- Technique: Social engineering through MFA fatigue
- Affect: Inner Slack, codebase, and admin instruments accessed
In September 2022, Uber was breached by a teen allegedly linked to the Lapsus$ group. The attacker used a multi-factor authentication (MFA) fatigue tactic, repeatedly sending login requests till an worker lastly accredited one. As soon as inside, the hacker exploited hardcoded credentials to entry inner programs, together with Slack, monetary dashboards, and supply code repositories.
Screenshots of the breach have been posted publicly, embarrassing Uber and highlighting how simply MFA protections may be bypassed with out charge limits or contextual checks. Whereas no person information was compromised, the incident uncovered the fragility of enterprise identification safety within the absence of person habits monitoring and zero-trust insurance policies.
2. Medibank (2022): 9.7M well being data stolen and leaked
- Technique: Unauthorized entry and extortion
- Affect: Medical information of 9.7 million individuals uncovered; no ransom paid
Australia’s largest well being insurer, Medibank, refused to pay a ransom demand after hackers stole and later printed delicate information, together with remedy data, psychological well being notes, and private identifiers. The attackers initially gained entry utilizing stolen credentials and frolicked contained in the community earlier than exfiltrating the info.
The breach affected almost 40% of Australia’s inhabitants and led to intense public backlash. Medical ethics teams raised alarms in regards to the long-term implications of exposing such personal well being data. The corporate’s inventory worth dropped, and the Australian authorities introduced a nationwide cybersecurity overhaul shortly after.
3. LastPass (2022): Encrypted vaults exfiltrated through dev account
- Technique: Developer credential compromise and cloud backup theft
- Affect: Encrypted password vaults and buyer metadata accessed
Initially disclosed in August 2022, the LastPass breach was extra severe than first admitted. Hackers compromised a developer’s residence machine and leveraged their entry to drag buyer vault backup recordsdata from a third-party cloud supplier. Though vaults have been encrypted, attackers stole metadata comparable to URL tags and buyer e-mail addresses.
The actual harm wasn’t quick; it was reputational. LastPass confronted a wave of person mistrust, and safety specialists urged prospects to rotate credentials manually. The breach turned a case research of why encryption alone isn’t sufficient when keys, cloud backups, and identification protections fail in tandem.
4. MOVEit (2023): Zero-day breach hits 2,500+ organizations
- Technique: Zero-day exploit in file switch software program
- Affect: Over 2,500 organizations breached globally
The MOVEit breach was some of the widespread zero-day exploit occasions in latest reminiscence. The Clop ransomware group exploited a beforehand unknown flaw in Progress Software program’s MOVEit Switch, generally used for safe file transfers. They automated the assault, scanning the web for uncovered situations and stealing information from 1000’s of targets.
Victims ranged from authorities contractors to universities and banking establishments. The dimensions and pace of the assault shocked the business and reignited conversations about safe software program growth lifecycles and vulnerability disclosure packages.
5. 23andMe (2023): Genetic information uncovered via reused logins
- Technique: Credential stuffing utilizing beforehand leaked passwords
- Affect: Genetic information for ethnic teams leaked; lawsuits adopted
Though 23andMe wasn’t technically hacked, attackers used credential stuffing, logging in with reused usernames and passwords from previous breaches. They accessed about 14,000 accounts, however as a result of firm’s relative-matching options, they might scrape genetic information tied to over 6.9 million people.
The info was finally leaked in racially sorted batches on-line, resulting in a global backlash. Critics warned that genetic information and public or social metadata might be used for focused discrimination or surveillance. The breach prompted authorized motion and brought about prospects to query the platform’s data-sharing mannequin.
6. T-Cellular (2023): API leak exposes 37M buyer profiles
- Technique: API misconfiguration
- Affect: Private information of 37 million customers uncovered
In early 2023, T-Cellular revealed {that a} dangerous actor had exploited an unauthenticated API, siphoning off buyer data comparable to full names, billing addresses, emails, cellphone numbers, and birthdates. The uncovered information didn’t embrace monetary or password credentials, however it added to the telecom large’s lengthy checklist of breaches — eight in whole since 2018.
This breach strengthened issues about insecure APIs in cell ecosystems, particularly when tied to client identification information. It triggered inner safety audits and heightened strain from the FCC, with critics questioning whether or not T-Cellular had meaningfully improved safety practices after its earlier lapses.
7. Capita (2023): Ransomware stalls UK authorities providers
- Technique: Ransomware (Black Basta group)
- Affect: Disruption to authorities providers, estimated £20M in damages
In March 2023, the Black Basta ransomware group focused Capita, one of many UK’s largest outsourcing corporations for public providers. The breach impacted vital operations comparable to navy recruitment programs, nationwide pension providers, and housing profit administration.
Attackers gained entry to programs two weeks earlier than detection, highlighting detection and dwell-time gaps in outsourced IT infrastructures. Delicate information, together with inner emails and insurance coverage data, was later leaked on the darkish net. As a provider to dozens of presidency businesses, the assault prompted a broader overview of how public sector contracts deal with cybersecurity oversight.
8. Western Digital (2023): 10TB stolen, MyCloud compelled offline
- Technique: Information exfiltration and extortion
- Affect: Cloud service outages and stolen company information
In March 2023, Western Digital reported a cyberattack that led to the theft of firm information and an prolonged shutdown of MyCloud and different providers. The attackers allegedly stole 10 terabytes of inner paperwork and demanded ransom, threatening to publish the info if fee was not made.
Prospects couldn’t entry their private recordsdata saved within the cloud for over 10 days, creating chaos for small companies, photographers, and distant professionals. The assault highlighted the rising development of ransomware teams concentrating on {hardware} and information infrastructure suppliers, not simply company endpoints.
9. Change Healthcare (2024): Ransomware freezes prescription programs
- Technique: Ransomware (BlackCat/ALPHV group)
- Affect: $22 million ransom paid; prescription programs paralyzed
In some of the disruptive assaults on U.S. healthcare infrastructure, Change Healthcare, a central processor for insurance coverage claims and prescription advantages, was crippled by ransomware in February 2024. The attackers, believed to be the BlackCat/ALPHV group, encrypted programs and demanded fee. Change Healthcare paid $22 million in Bitcoin, however delays and guide processing disrupted hospitals and pharmacies nationwide.
Docs couldn’t submit claims, sufferers couldn’t get drugs, and hospital income cycles have been frozen for weeks. The assault prompted hearings within the U.S. Senate and renewed requires vital infrastructure cyber requirements.
10. Microsoft (2024): Russian hackers breach exec e-mail accounts
- Technique: State-sponsored espionage (Midnight Blizzard/APT29)
- Affect: Breach of govt mailboxes and U.S. company correspondence
In early 2024, Microsoft disclosed {that a} Russia-linked group, Midnight Blizzard (additionally referred to as APT29 or Cozy Bear), had accessed a “small quantity” of company e-mail accounts, together with senior executives and cybersecurity employees. The breach started with a password spray assault, adopted by abuse of OAuth permissions to escalate entry.
This was not a ransomware case. It was a focused, low-noise espionage operation that bypassed detection for months. APT29 has beforehand been linked to the SolarWinds assault and different high-level intrusions. The breach prompted U.S. federal opinions, and Microsoft promised an entire revamp of how authentication and permissions are managed internally.
11. Cencora (2024): Pharma information breach disrupts provide chain
- Technique: Information breach (particulars beneath investigation)
- Affect: Potential disruption to pharmaceutical logistics and compliance
In February 2024, Cencora (previously AmerisourceBergen) disclosed that it had skilled a cybersecurity incident involving unauthorized entry to firm information. Whereas full particulars haven’t been launched, the corporate is a central distributor within the U.S. pharmaceutical provide chain, that means the stakes are exceptionally excessive.
Investigations are underway to find out whether or not medical trial information, drug distribution data, or patient-level information have been compromised. Analysts warn that such a breach might decelerate medicine entry, expose proprietary formulations, and create compliance fallout beneath HIPAA and FDA pointers.
Dig deeper into the numbers driving ransomware, trojans, adware, and extra in our full breakdown of the most recent malware statistics.
Different cyber assaults in historical past by 12 months
A decade of cyber assaults tells a bigger story: one in all rising sophistication, shifting motives, and digital vulnerabilities that threaten every thing from private identities to international diplomacy.
Right here’s a year-by-year breakdown of how cyber assaults went from back-page information to front-page chaos:
- 2011: Sony’s PlayStation Community breach uncovered 77M accounts, foreshadowing future information breaches in client tech.
- 2012: Saudi Aramco’s Shamoon malware worn out 30,000 workstations, showcasing how cyberwarfare might goal oil economies.
- 2013: Goal misplaced 110M buyer data through an HVAC vendor, making third-party safety a boardroom matter in a single day.
- 2014: Yahoo suffered the most important recognized breach, impacting 500M accounts.
- 2015: The U.S. Workplace of Personnel Administration was hit by Chinese language actors, compromising 21.5M federal worker recordsdata, together with fingerprints and safety clearances.
- 2016: Dyn’s DDoS assault through Mirai botnet took down a lot of the web, powered by hacked sensible gadgets.
- 2017: WannaCry ransomware, utilizing leaked NSA instruments, paralyzed 300K programs throughout 150 nations.
- 2018: Marriott’s long-brewing breach uncovered the private data of 500 million visitors, together with passport numbers.
- 2019: Capital One misplaced 100M data attributable to an AWS misconfiguration, underscoring dangers in cloud adoption.
- 2020: SolarWinds’ backdoor gave suspected Russian operatives entry to U.S. businesses, a software program provide chain breach on an unprecedented scale.
- 2021: Colonial Pipeline was hit by DarkSide ransomware, resulting in gasoline shortages throughout the U.S. East Coast, proving ransomware might cripple real-world logistics.
Cyber assault readiness guidelines
Even one weak hyperlink is sufficient. Begin with identification. Layer defenses. Apply your response.
- Allow adaptive MFA on all accounts
- Restrict and audit admin entry
- Block reused passwords and monitor login abuse
- Patch quick — particularly zero-days
- Safe APIs and cloud configs
- Again up information and check restores
- Run quarterly phishing exams
- Prepare employees on social engineering
- Create and rehearse an incident response plan
- Use EDR or SIEM for real-time menace detection
- Set alerts for suspicious logins and entry spikes
- Consider vendor safety measures persistently
- Construct a ransomware playbook
- Assign breach response roles
- Run tabletop drills twice a 12 months
Each breach tells a narrative
Every cyber assault on this checklist is not only a headline. It is a second when know-how, individuals, and strain collide. Some uncovered gaps in safety, whereas others revealed the human value of digital oversight. A number of adjustments have occurred in how industries take into consideration danger.
From the within job to the nation-state exploit, these breaches present us that no system is simply too subtle, and no sector is simply too secure. However in addition they inform tales of adaptation: of firms rebuilding belief, regulators rethinking coverage, and cybersecurity groups leveling up beneath strain.
There’s no single villain, no one-size-fits-all protection, only a rising archive of hard-earned classes. The problem now’s turning these classes into a technique.
The story of cyber danger continues to be being written. What occurs subsequent is dependent upon how properly we hear.
Realizing what occurred is simply the 1st step. Understanding the traits is what prepares you. Uncover how as we speak’s cybercrime statistics are shaping tomorrow’s safety selections.
