A rash of hacking attacks on U.S. businesses over the previous two years has prompted insurance companies to massively improve cyber premiums for some businesses, leaving businesses that are seen to be a high risk scrambling for cover.

In addition to rate increases, insurance companies are increasing deductibles and sometimes restricting the quantity of coverage to $100 million, leaving many possibly subjected from hacks that could cost more than twice that to enormous losses.

The amount of coverage that is cyber – which helps cover prices like legal fees, credit monitoring, forensic investigations and resolutions – fluctuates widely, determined by the strength of the security of a firm. Nevertheless, the overall tendency is aggressively upward.

Wellness insurance companies and retailers have been particularly hard hit by the credit crunch after high profile breaches at Anthem Inc, Target Corp, Home Depot Inc and Premera Blue Cross.

Health insurance companies who endured hacks are facing the most extreme increases, with some premiums said Bob Wice, a leader of the cyber insurance practice of Beazley Plc.

Typical rates for retailers soared 32 percent in the very first half of the year, after remaining flat in 2014, according to previously unreported amounts from Marsh.

Higher deductibles are also now normal for wellness insurance companies and retailers. And the largest insurance companies won’t write policies for at least $100 million for customers that are high-risk. That leave businesses like Target, which says its large 2013 data violation has cost $264 million.

The company was substantially smaller, although it wouldn’t say what that amount was before.