Since its formation in 2018, non-profit whistleblower website Distributed Denial of Secrets (abbreviated DDoSecrets) has published dozens of terabytes of data leaked from more than 200 organizations .

2018 Russian Ministry of Internal Affairs In December 2018, DDoSecrets listed a leak from Russia's Ministry of Internal Affairs, portions of which detailed the deployment of Russian troops to Ukraine at a time when the Kremlin was denying a military presence there. About half of the material from that leak was published in 2014; the other half emerged in 2016. WikiLeaks reportedly rejected a request to host the full cache of files in 2016, at a time when founder Julian Assange was focused on exposing Democratic Party documents passed to WikiLeaks by Kremlin hackers.

2019

"Dark Side of the Kremlin" In January 2019, DDoSecrets published hundreds of gigabytes of hacked Russian documents and emails from pro-Kremlin journalists, oligarchs, and militias. The New York Times called the release "a symbolic counterstrike against Russia's dissemination of hacked emails to influence the American presidential election in 2016", though DDoSecrets founder Emma Best stated it was not a retaliatory action. According to the Times, the documents exposed new information on the Russo-Ukrainian War, connections between the Kremlin and the Russian Orthodox Church, and oligarchs' business activities. According to an internal bulletin issued by the United States Department of Homeland Security, the "hack-and-leak activity" was conducted by DDoSecrets, though the organization says it is not involved in hacking, and reporting by Al Jazeera and The Daily Beast identified several independent hacktivists and hacker groups as responsible for the hacks.

Cayman National Bank and Trust In November 2019, DDoSecrets published over 2 terabytes of data from the Cayman National Bank and Trust. The files were provided by the hacktivist known as Phineas Fisher, and included lists of the bank's politically exposed clients. The leak was used by the Organized Crime and Corruption Reporting Project and other researchers to study how elites and officials including Armenia's former head of customs use offshore banking, and revealed the Bank's role in the Wirecard scandal.

Investigation of the leak led to a calls for increased audits of the rich. Belgian tax authorities initiated an investigation based on the CNB leak and the "#29 Leaks" the following month.

Formations House In December 2019, DDoSecrets published "#29 Leaks" in partnership with the Organized Crime and Corruption Reporting Project. The 450 gigabytes of data came from Formations House (now The London Office), a "company mill" which registered and operated companies for clients included organized crime groups, state-owned oil companies, and fraudulent banks. The leak included emails, documents, faxes, and recordings of phone calls. Investigations revealed the firm ran a web of companies registered in Hong Kong, Cyprus, the British Virgin Islands and Pakistan, helped clients avoid anti–money laundering rules and had created banks in The Gambia in an attempt to create a tax haven. According to The Times, there was no evidence that Formations House did anything illegal but their investigationhighlighted worrying vulnerabilities in the UK’s defences against money laundering. For those looking to launder their ill-gotten gains, Britain offers many advantages. It can cost as little as £20 to register a company via a formation agent. Formations House can also offer off-the-shelf companies that have previously been incorporated and come complete with trading histories, nominee directors, an address and an attached bank account.The release was compared to both the Panama Papers and the Paradise Papers. Belgian tax authorities initiated an investigation based on data from this leak and from the Cayman National Bank and Trust leak published by DDoSecrets the prior month. Politicians in Sweden and the UK, including anti-corruption chief John Penrose said the leak showed the need for reforms on company creation and registration.

Chilean police and military In December 2019, DDoSecrets published "PacoLeaks" and "MilicoLeaks": data from Chilean military police and military. PacoLeaks revealed police personnel data, extensive police files on activist groups and leaders, and evidence that the police had infiltrated activist groups MilicoLeaks included details on Chilean army intelligence, including operations, finance and international relations.

2020

Bahamas corporate registries In 2020, DDoSecrets published a copy of the Bahamas corporate registry. DDoSecrets partnered with European Investigative Collaborations and the German Henri-Nannen-Schule journalism school to create the Tax Evader Radar, a project to review the dataset of almost one million documents. The project exposed the offshore holdings of prominent Germans, the tax activities of ExxonMobil, as well as offshore business entities belonging to the DeVos and Prince families.

Myanmar Investment Commission In March 2020, DDoSecrets published 156 gigabytes of data hacked from the Myanmar Investment Commission. The release included investment management documents, permits, and proposals. As a result of the leak, Justice For Myanmar added 26 companies to its list of business associates of the Myanmar military.

The leak also revealed how millions of dollars allegedly flowed from Mytel subscribers to Myanmar military generals, and exposed business dealings of family members of prominent military leaders. The data from the leak was later used to highlight companies tied to family members of military leaders, who likely profited from the 2021 coup d'état and associated internet blackouts. The leak also led to allegations of profiteering which resulted in policy changes that cost Myanmar generals millions of dollars. The data also revealed that Thai state-owned companies were funding the Myanmar junta.

Neo-Nazi and QAnon Discord messages In April 2020, DDoSecrets published almost 10million messages from more than 100 Discord servers used by neo-Nazi and QAnon conspiracy theorist groups. The leaked chats showed threats of violence and attempts to influence the 2018 United States midterm elections.

BlueLeaks

On June 19, 2020, DDoSecrets released BlueLeaks, which consisted of 269 gigabytes of internal U.S. law enforcement data obtained from fusion centers by the hacker collective Anonymous. DDoSecrets called it the "largest published hack of American law enforcement agencies." Betsy Reed described BlueLeaks as the U.S. law enforcement equivalent to the Pentagon Papers.

A DDoSecrets server hosting BlueLeaks data for public download was located in Germany, and German authorities seized it at the request of the United States. DDoSecrets co-founder Emma Best reported that it was the group's "primary public download server".

After the leak, Twitter suspended DDoSecrets' account. Twitter cited its terms of service, which explicitly bars the distributing of "content obtained through hacking that contains private information, may put people in harm or danger, or contains trade secrets." However, Best called Twitter's actions "heavy-handed", as they suspended users who tweeted links to archived copies of the leaked material or who merely mentioned the leak. On July 9, Reddit banned /r/BlueLeaks, a community created to discuss BlueLeaks, claiming they had posted personal information.

Julian Assange and WikiLeaks In July 2020, DDoSecrets released documents relating to the United States' case against WikiLeaks founder Julian Assange. The release also included chat logs and letters between Assange and various sources.

2021

Parler social network

In January 2021, DDoSecrets made videos scraped from Parler available to journalists. Some of these videos were later used as evidence during the second impeachment trial of Donald Trump.

Myanmar financial data In February 2021, DDoSecrets gave journalists access to hundreds of thousands of financial documents from the Myanmar Directorate of Investment and Company Administration (DICA). These showed that Google was allowing coup leaders and Myanmar military leaders to use Gmail addresses and Blogger sites, which activists said indirectly supported the Myanmar coup. Google subsequently disabled the blog, which a Google spokesperson said was in response to a presidential executive order concerning Myanmar." Justice For Myanmar called the release "biggest leak in Myanmar history."

Gab social network

On February 28, DDoSecrets revealed "GabLeaks", a collection of more than 70 gigabytes of data from Gab, including more than 40 million posts, passwords, private messages, and other leaked information. The data was given to the group by a hacktivist self-identifying as "JaXpArO", titling the leak "JaXpArO and My Little Anonymous Revival Project". JaXpArO retrieved the data from Gab's back-end databases to expose the platform's largely right-wing userbase. Best called GabLeaks "another gold mine of research for people looking at militias, neo-Nazis, the far right, QAnon and everything surrounding January 6."

The group said that they would not release the data publicly because it contained a large amount of private and sensitive information, and instead shared the data with select journalists, social scientists, and researchers. Andy Greenberg from Wired confirmed that the data "does appear to contain Gab users' individual and group profiles—their descriptions and privacy settings—public and private posts, and passwords".

GiveSendGo In April 2021, Distributed Denial of Secrets made donor information from the Christian crowdfunding site GiveSendGo available to journalists and researchers. The information identified previously anonymous high-dollar donors to far-right actors including members of the Proud Boys, many of whose fundraising efforts were directly related to the 2021 United States Capitol attack. The platform had previously been criticized for its refusal to restrict use by far-right extremists. The leak also revealed that police officers and public officials in the United States had donated to Kyle Rittenhouse. In May 2021, USA Today used the GiveSendGo data to report that nearly $100,000 was raised for the Proud Boys on GiveSendGo from people of Chinese descent in the days before the 2021 Capitol attack. The following month, they used the data to report that a member of the Koch family had anonymously donated to a crowdfunding campaign supporting 2020 election fraud conspiracy theories.

Chicago City Hall emails In April 2021, DDoSecrets published a cache of emails from Chicago City Hall. The emails revealed that the city's handling of fatal shootings by police officers violates state law and a federal consent decree. The emails also exposed the Mayor's secret lobbying for qualified immunity, a secret drone program funded with off-the-books cash, and the city's problems with police chases and the George Floyd protests. The emails also revealed that the Mayor's office was unaware of the CPD's use of facial recognition software from Clearview AI until after receiving inquiries from journalists.

Washington, D.C. police In May 2021, DDoSecrets republished the leak of Washington D.C.'s Metropolitan Police Department, including over 90,000 emails. Among other things, the files revealed details of surveillance of right-wing extremists and the response to the 2021 United States Capitol attack. Reporting based on the files led to D.C. passing a budget that reformed parts of the city's gang database management.

LineStar Integrity Services In June 2021, DDoSecrets released 73,500 emails, accounting files, contracts, and other business documents and around 19 gigabytes of source code and data from the oil pipeline services firm LineStar Integrity Services. They also released 10 gigabytes of employee data.

Presque Isle, Maine police