Thanks to Jennylee over at the Fuselage for this information.
Puzzle #4 of the series was just released, allowing for ingenious puzzle makers to finally construct the spoiler information the puzzles were said to include. You can read all the work that went into it on Lostpedia.
Here are the results of the decoding process
These are read from the upper left corner of the map, in a clockwise direction.
THERE IS NO SICKNESS
NEED MORE MAC AND CHEESE
PERIODIC RESUPPLY DROP
ALVAR HANSO
WHAT GOOD IS PEANUT BUTTER AND CEREAL WITHOUT MILK
QUARANTINE IS A HOAX
DHARMA INITIATIVE HANSO GROUP
CERBERUS VENT
EMERGENCY ESCAPE PROTOCOL
The underlined text (decoded from the corresponding underlined code) corresponds to abbreviations seen on the blast door map notations, which were previously not fully explained. This decoded message clarifies that shorthand.
* P.R.D.
* A.H.
* D.I.H.G.
* C.V.
* E.E.P.
Source: LostPedia
