The phrase "a major leak" is correct and usable in written English.
It can be used to describe a significant or serious breach of information, typically in contexts related to security, privacy, or infrastructure.
Example: "The company faced severe consequences after a major leak of confidential client data was discovered."
Alternatives: "a significant breach" or "a substantial leak."
A major leak on the outside of St Mauritius House in Lewisham.
Questions also persist on how well the area around Indian Point could be evacuated if a major leak occurred.
Power said he lives within about 500m of one well, which had a major leak in 2014.
The revelations from a major leak of 11.5m files from the database of Mossack Fonseca has led to outrage around the world.
Much bigger amounts of radiation have been detected just off shore, although the levels appear to be diminishing and a major leak has been plugged.
And they have argued over whether, for example, a plane crashing into the reactors would cause a major leak that would harm thousands, sow panic and tax authorities' ability to evacuate people.
Mr. Hahn said any major leak was unlikely if the patchwork went ahead as planned.
In Ms. Lynch's paper published this year on WikiLeaks and the future of investigative reporting, she said that before the site went live, organizers tried, and largely failed, to get media attention for the site's first major leak — a 2005 memo on civil war policy by the Somali Islamic court system.
There are few reports comparing the variety and frequency of postoperative complications between patients with a major clinical leak requiring emergency abdominal reoperation and those with a minor leak diagnosed from clinical signs and managed expectantly without reoperation.
PHILADELPHIA — The American news media is wildly overplaying Russia's role in a major email leak.
A major data leak can have devastating effects on reputation and will negative impact a company's balance sheet.
