The phrase "are protected with" is correct and usable in written English.
It can be used when describing the means or methods by which something is safeguarded or secured.
Example: "The sensitive data are protected with advanced encryption techniques to ensure privacy."
Alternatives: "are secured by" or "are safeguarded with".
In the second, mild protection scheme, A and dA are protected with isobutyryl or phenoxyacetyl groups (PAC).
C and dC bear acetyl protection, and G and dG are protected with 4-isopropylphenoxyacetyl (iPr-PAC) or dimethylformamidino (dmf) groups.
Generally power distribution systems are protected with the help of dedicated over current based protection schemes.
While some of what the criminologist Ron Clarke termed Craved items (Concealable, Removable, Available, Valuable, Enjoyable and Disposable), such as razor blades, DVDs and bottles of spirits are protected with security tags, supermarket cheese is rarely given the same protection, according to Lorraine Gamman, director of the Design Against Crime Research Centre.
The police spokesman said that the house's doors and windows are protected with security bars.
Still, the big papers have some unique properties, which will likely become extinct unless their newsrooms are protected with endowments.
Government officials insist that United States satellites launched on Chinese rockets are protected with armed American guards around the clock.
The outposts are protected with reinforced concrete and sit on mounds to give a clear view of the surroundings.
All gas inlets are protected with gas-permeable 0.2 µm sterile filter units to ensure adequate and aseptic gas exchange.
Windows are protected with materials reminiscent of palm fronds that performed the same function in older homes and buildings.
To make a relief etching, the areas not to be removed by acid are protected with liquid ground or varnish.
