diff --git a/documentation/fbt.md b/documentation/fbt.md
index a4717463..65729c5c 100644
--- a/documentation/fbt.md
+++ b/documentation/fbt.md
@@ -72,7 +72,7 @@ To run cleanup (think of `make clean`) for specified targets, add the `-c` optio
 - `get_stlink` - output serial numbers for attached STLink probes. Used for specifying an adapter with `OPENOCD_ADAPTER_SERIAL=...`.
 - `lint`, `format` - run clang-format on the C source code to check and reformat it according to the `.clang-format` specs.
 - `lint_py`, `format_py` - run [black](https://black.readthedocs.io/en/stable/index.html) on the Python source code, build system files & application manifests.
-- `firmware_pvs` - generate a PVS Studio report for the firmware. Requires PVS Studio to be availabe on your system's `PATH`.
+- `firmware_pvs` - generate a PVS Studio report for the firmware. Requires PVS Studio to be available on your system's `PATH`.
 - `cli` - start a Flipper CLI session over USB.
 
 ### Firmware targets
diff --git a/lib/ibutton/protocols/dallas/protocol_ds_generic.c b/lib/ibutton/protocols/dallas/protocol_ds_generic.c
index af355f46..6c698bb8 100644
--- a/lib/ibutton/protocols/dallas/protocol_ds_generic.c
+++ b/lib/ibutton/protocols/dallas/protocol_ds_generic.c
@@ -62,6 +62,7 @@ bool ds_generic_write_blank(OneWireHost* host, iButtonProtocolData* protocol_dat
 }
 
 static bool ds_generic_reset_callback(bool is_short, void* context) {
+    furi_assert(context);
     DallasGenericProtocolData* data = context;
     if(!is_short) {
         onewire_slave_set_overdrive(data->state.bus, is_short);
@@ -93,7 +94,7 @@ void ds_generic_emulate(OneWireSlave* bus, iButtonProtocolData* protocol_data) {
     DallasGenericProtocolData* data = protocol_data;
     data->state.bus = bus;
 
-    onewire_slave_set_reset_callback(bus, ds_generic_reset_callback, NULL);
+    onewire_slave_set_reset_callback(bus, ds_generic_reset_callback, protocol_data);
     onewire_slave_set_command_callback(bus, ds_generic_command_callback, protocol_data);
 }
 
diff --git a/lib/nfc/nfc_worker.c b/lib/nfc/nfc_worker.c
index 4561ff2a..c2b89c71 100644
--- a/lib/nfc/nfc_worker.c
+++ b/lib/nfc/nfc_worker.c
@@ -638,7 +638,8 @@ static void nfc_worker_mf_classic_key_attack(
                     (uint32_t)key);
                 if(mf_classic_authenticate(tx_rx, block_num, key, MfClassicKeyA)) {
                     mf_classic_set_key_found(data, i, MfClassicKeyA, key);
-                    FURI_LOG_D(TAG, "Key found");
+                    FURI_LOG_D(
+                        TAG, "Key A found: %04lx%08lx", (uint32_t)(key >> 32), (uint32_t)key);
                     nfc_worker->callback(NfcWorkerEventFoundKeyA, nfc_worker->context);
 
                     uint64_t found_key;
@@ -661,7 +662,8 @@ static void nfc_worker_mf_classic_key_attack(
                     (uint32_t)key);
                 if(mf_classic_authenticate(tx_rx, block_num, key, MfClassicKeyB)) {
                     mf_classic_set_key_found(data, i, MfClassicKeyB, key);
-                    FURI_LOG_D(TAG, "Key found");
+                    FURI_LOG_D(
+                        TAG, "Key B found: %04lx%08lx", (uint32_t)(key >> 32), (uint32_t)key);
                     nfc_worker->callback(NfcWorkerEventFoundKeyB, nfc_worker->context);
                 }
             }
@@ -760,9 +762,13 @@ void nfc_worker_mf_classic_dict_attack(NfcWorker* nfc_worker) {
                     furi_hal_nfc_sleep();
                     deactivated = true;
                 } else {
-                    mf_classic_set_key_not_found(data, i, MfClassicKeyA);
-                    is_key_a_found = false;
-                    FURI_LOG_D(TAG, "Key %dA not found in attack", i);
+                    // If the key A is marked as found and matches the searching key, invalidate it
+                    if(mf_classic_is_key_found(data, i, MfClassicKeyA) &&
+                       data->block[i].value[0] == key) {
+                        mf_classic_set_key_not_found(data, i, MfClassicKeyA);
+                        is_key_a_found = false;
+                        FURI_LOG_D(TAG, "Key %dA not found in attack", i);
+                    }
                 }
                 if(!is_key_b_found) {
                     is_key_b_found = mf_classic_is_key_found(data, i, MfClassicKeyB);
@@ -775,9 +781,13 @@ void nfc_worker_mf_classic_dict_attack(NfcWorker* nfc_worker) {
                     }
                     deactivated = true;
                 } else {
-                    mf_classic_set_key_not_found(data, i, MfClassicKeyB);
-                    is_key_b_found = false;
-                    FURI_LOG_D(TAG, "Key %dB not found in attack", i);
+                    // If the key B is marked as found and matches the searching key, invalidate it
+                    if(mf_classic_is_key_found(data, i, MfClassicKeyB) &&
+                       data->block[i].value[10] == key) {
+                        mf_classic_set_key_not_found(data, i, MfClassicKeyB);
+                        is_key_b_found = false;
+                        FURI_LOG_D(TAG, "Key %dB not found in attack", i);
+                    }
                 }
                 if(is_key_a_found && is_key_b_found) break;
                 if(nfc_worker->state != NfcWorkerStateMfClassicDictAttack) break;