A portable safety container (10; 10'), configured also for fixed installation, comprising: - a main body (11; 11'), in turn having a containment structure (2; 2') and a corresponding covering element, said containment structure (2; 2') and covering element being selectively coupled to define a closed safety compartment, wherein said containment structure (2; 2') has at least a first seat (24, 25; 24'); - one closing element (4; 4'), in particular a lock, preferably integral with said covering element, selectively operable to lock said covering element with said containment structure (2; 2') and also selectively operable to lock said main body (11; 11') with a support body (3; 3') fixed, in use, to a wall or to an equivalent element, said closing element (4; 4') comprising a first portion (41; L1) and a second portion (42; L2), wherein said first portion (41; L1) can be selectively received in said first seat (24, 25; 24') of said containment structure (2; 2') and wherein said second portion (42; L2) is configured in such a way as to be selectively couplable in a fixed manner with a second seat (23; 23') associated to the support body (3; 3'), wherein the overall configuration of said security container (10; 10') is such that it can assume: ▪ an open arrangement, wherein said first (41; L1) and second (42; L2) portion of said closing element (4; 4') are in a position in which they are uncoupled respectively from said first seat (24, 25; 24') and from the second seat (23; 23'); ▪ a first closing arrangement, wherein said first portion (41; L1) implements a fixed coupling with said first seat (24, 25; 24'), which corresponds to a locking of said covering element with said containment structure (2; 2'), whereas said second portion (42; L2) remains in a position in which it is uncoupled with respect to the second seat (23; 23') of the support body (3; 3'); and ▪ a second closing arrangement, wherein one of said first portion and second portion implements a fixed coupling with said first seat (24, 25; 24'), which corresponds to a locking of said covering element with said containment structure (2; 2'), and said second portion (42; L2) is in a position in which it can implement a fixed coupling with the second seat (23; 23') of the support body (3; 3'), which corresponds to a locking of said main body (11; 11') on the support body (3; 3'). - a main body (11; 11'), in turn having a containment structure (2; 2') and a corresponding covering element, said containment structure (2; 2') and covering element being selectively coupled to define a closed safety compartment, wherein said containment structure (2; 2') has at least a first seat (24, 25; 24'); - one closing element (4; 4'), in particular a lock, preferably integral with said covering element, selectively operable to lock said covering element with said containment structure (2; 2') and also selectively operable to lock said main body (11; 11') with a support body (3; 3') fixed, in use, to a wall or to an equivalent element, said closing element (4; 4') comprising a first portion (41; L1) and a second portion (42; L2), wherein said first portion (41; L1) can be selectively received in said first seat (24, 25; 24') of said containment structure (2; 2') and wherein said second portion (42; L2) is configured in such a way as to be selectively couplable in a fixed manner with a second seat (23; 23') associated to the support body (3; 3'), ▪ an open arrangement, wherein said first (41; L1) and second (42; L2) portion of said closing element (4; 4') are in a position in which they are uncoupled respectively from said first seat (24, 25; 24') and from the second seat (23; 23'); ▪ a first closing arrangement, wherein said first portion (41; L1) implements a fixed coupling with said first seat (24, 25; 24'), which corresponds to a locking of said covering element with said containment structure (2; 2'), whereas said second portion (42; L2) remains in a position in which it is uncoupled with respect to the second seat (23; 23') of the support body (3; 3'); and ▪ a second closing arrangement, wherein one of said first portion and second portion implements a fixed coupling with said first seat (24, 25; 24'), which corresponds to a locking of said covering element with said containment structure (2; 2'), and said second portion (42; L2) is in a position in which it can implement a fixed coupling with the second seat (23; 23') of the support body (3; 3'), which corresponds to a locking of said main body (11; 11') on the support body (3; 3').